[HD2 Windows Mobile 6.5 ROM Development] Tokolosh:
It is possible to create a reg file which you can then use either with the incooked xda_uc or with sashimi. This works for the sounds problem you are experiencing as well as regional/location settings.

First setup your phone with the region settings you want and then export the following registry keys.

[HKEY_LOCAL_MACHINE\System\State\DateTime]

[HKEY_LOCAL_MACHINE\Time]

that would be for regional/location and for the sounds/notification settings the xml file would look similar to this

<wap-provisioningdoc>
<!-- Applies ringtone notification settings -->
<characteristic type="Registry">
<!-- New Email Message -->
<characteristic type="HKCU\ControlPanel\Notifications\{A877D65A-239C-47a7-9304-0D347F580408}" translation="filesystem">
<parm name="Options" datatype="integer" value="1"/>
<parm name="Wave" datatype="string" value="\Storage Card\My Music\Ringtones\PICARD.mp3"/>
</characteristic>
<!-- New Text Message. for a text tone to work from sd, the file needs to be a wma in the My Documents folder. -->
<characteristic type="HKCU\ControlPanel\Notifications\{A877D65B-239C-47a7-9304-0D347F580408}" translation="filesystem">
<parm name="Options" datatype="integer" value="13"/>
<parm name="Wave" datatype="string" value="\Storage Card\My Music\Ringtones\PICARD.mp3"/>
</characteristic>
<!-- Incoming Call. Both need to be the same -->
<characteristic type="HKCU\ControlPanel\Sounds\RingTone0" translation="filesystem">
<parm name="Script" datatype="string" value="apw3r"/>
<parm name="Script-OemRingtoneGap" datatype="string" value="w3"/>
<parm name="Sound" datatype="string" value="\Storage Card\My Documents\My Ringtones\Top Gear.mp3"/>
</characteristic>
<characteristic type="HKCU\ControlPanel\Sounds\RingTone2" translation="filesystem">
<parm name="Sound" datatype="string" value="\Storage Card\My Documents\My Ringtones\Top Gear.mp3"/>
</characteristic>
</characteristic>
</wap-provisioningdoc>

I personally advise putting your custom ringtones on your sd card in the same way they would be on the device ie:

sd card/my documents/my ringtones/xxxxyourringtoneherexxx

this way the device will actually find them and you will also find them in the ringtone list with the other default ones. This way you can set the ringtones the way you like them and use the settings on every flash automatically ;)

If you want more notification setting possabilities then take a look at this:

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\ControlPanel\Notifications]
"AlertInterrupt"=dword:00000000
"MuteSoundOnClose"=dword:00000001

[HKEY_CURRENT_USER\ControlPanel\Notifications\{A877D65B-239C-47a7-9304-0D347F580408}]
"Options"=dword:0000000d
"Wave"="\\Storage Card\\My Documents\\My Ringtones\\PICARD.MP3"
"AvailableOptions"=dword:00000000
@="Messaging: New text message"
"Duration"=dword:00000000

[HKEY_CURRENT_USER\ControlPanel\Notifications\{A877D65A-239C-47a7-9304-0D347F580408}]
"Options"=dword:00000003
"Wave"="\\Storage Card\\My Documents\\My Ringtones\\PICARD.MP3"
"AvailableOptions"=dword:00000000
@="Messaging: New e-mail message"
"Duration"=dword:00000000

[HKEY_CURRENT_USER\ControlPanel\Notifications\{A7E8E379-4B72-45c2-8508-A4E04FF32E2A}]
"Options"=dword:00000008
"Duration"=dword:00000000
"Wave"=""

[HKEY_CURRENT_USER\ControlPanel\Notifications\{2E98AFA8-55C6-45e8-929B-1E86FFC623D1}]
"Wave"="\\Windows\\Alert-Subtle.wma"
"Duration"=dword:00000000
"Options"=dword:00000001

[HKEY_CURRENT_USER\ControlPanel\Notifications\{30C36138-83E1-4e0c-8440-30489CE8D8BE}]
"Wave"="Alarm1"
"Duration"=dword:00000000
"Options"=dword:00000001

[HKEY_CURRENT_USER\ControlPanel\Notifications\{9DA772A9-C4BD-495A-BAB3-F41279870978}]
"Duration"=dword:00000001
"Options"=dword:00000007
"Wave"="\\Windows\\Rings\\Alert-Twitter.wav"

[HKEY_CURRENT_USER\ControlPanel\Notifications\{85ee47b2-57d7-EEFE-8e7a-36480443d084}]
"Options"=dword:00000000
"Wave"=""
@="QuickGPS"
"Duration"=dword:00000000
"AvailableOptions"=dword:0000000b

[HKEY_CURRENT_USER\ControlPanel\Notifications\{F55615D6-D29E-4db8-8C75-98125D1A7253}]
"Wave"="\\Windows\\Alarm2.wav"
"Options"=dword:00000008
"AvailableOptions"=dword:0000000b
@="Beam: Autoreceive"
"Duration"=dword:00000000

[HKEY_CURRENT_USER\ControlPanel\Notifications\{1CBF334F-99CC-4835-B930-E3568FE5B2C7}]
"Duration"=dword:00000000
"Wave"=""
@="Volume Warning"
"Options"=dword:20000000

[HKEY_CURRENT_USER\ControlPanel\Notifications\{607CDEA2-E44A-4528-A2C3-A7DC6B6D824D}]
@="Bluetooth"
"AvailableOptions"=dword:00000009
"Options"=dword:00000000
"Duration"=dword:00000000
"Wave"=""

[HKEY_CURRENT_USER\ControlPanel\Notifications\{85E4331D-DCA8-4a50-AE5E-AC600E8809FB}]
"Wave"="\\Windows\\Alert-Blip.wma"
"Duration"=dword:00000000
"AvailableOptions"=dword:00000004
"Options"=dword:00000000
@="MediaUploader"

[HKEY_CURRENT_USER\ControlPanel\Notifications\{CA777AF7-3CDE-4c15-A7CD-81F629ABA6B9}]
"Options"=dword:00000008

[HKEY_CURRENT_USER\ControlPanel\Notifications\{CA777AF7-3CDE-4c15-A7CD-81F629ABA6B8}]
"Options"=dword:00000008

[HKEY_CURRENT_USER\ControlPanel\Notifications\{A877D661-239C-47a7-9304-0D347F580408}]
"Options"=dword:00000000
"Duration"=dword:00000000
"Wave"="\\Windows\\Alert-Shine.wma"
"AvailableOptions"=dword:00000000
@="Phone: Voice mail"

[HKEY_CURRENT_USER\ControlPanel\Notifications\{A877D660-239C-47a7-9304-0D347F580408}]
"Options"=dword:00000003
"Wave"="\\Storage Card\\My Documents\\My Ringtones\\PICARD.MP3"
"Duration"=dword:00000000
"AvailableOptions"=dword:00000000
@="Phone: Missed call"

[HKEY_CURRENT_USER\ControlPanel\Notifications\Phone]
"Options"=dword:80000000
@="Phone: Incoming call"
"DisplayOrder"=dword:00000001
"Wave"="\\Windows\\Ring-WindowsMobile .wma"
"Duration"=dword:00000001

[HKEY_CURRENT_USER\ControlPanel\Notifications\{A877D65D-239C-47a7-9304-0D347F580408}]
"Wave"="online.wma"
"Duration"=dword:00000003
"Options"=dword:0000000d

[HKEY_CURRENT_USER\ControlPanel\Notifications\{A877D659-239C-47a7-9304-0D347F580408}]
"Wave"="\\Windows\\Alert-ModernLow.wma"
@="ActiveSync: End sync"
"Duration"=dword:00000000
"AvailableOptions"=dword:00000003
"Options"=dword:00000000

[HKEY_CURRENT_USER\ControlPanel\Notifications\{A877D658-239C-47a7-9304-0D347F580408}]
"Wave"="\\Windows\\Alert-ModernMid.wma"
@="ActiveSync: Begin sync"
"Duration"=dword:00000000
"AvailableOptions"=dword:00000003
"Options"=dword:00000000

[HKEY_CURRENT_USER\ControlPanel\Notifications\{15F11F90-8A5F-454c-89FC-BA9B7AAB0CAD}]
"Wave"="\\Storage Card\\My Documents\\My Ringtones\\PICARD.MP3"
"Duration"=dword:00000000
"AvailableOptions"=dword:0000000f
"Options"=dword:4000001b
@="Reminders"

[HKEY_CURRENT_USER\ControlPanel\Notifications\{B67B425B-365E-42c0-95F7-B75503D775B8}]
"Duration"=dword:00000000
"Options"=dword:00000008

[HKEY_CURRENT_USER\ControlPanel\Notifications\{DDBD3B44-80B0-4b24-9DC4-839FEA6E559E}]
"Wave"="\\Windows\\Alert-Subtle.wma"
"AvailableOptions"=dword:0000000b
"Options"=dword:00000000
@="Wireless network detected"
"Duration"=dword:00000000

[HKEY_CURRENT_USER\ControlPanel\Notifications\{8ddf46e8-56ed-4750-9e58-afc6ce486d03}]
"Wave"="\\Windows\\Alert-ModernLow.wma"
@="Connection disconnected"
"Duration"=dword:00000000
"AvailableOptions"=dword:00000003
"Options"=dword:00000000

[HKEY_CURRENT_USER\ControlPanel\Notifications\{8ddf46e7-56ed-4750-9e58-afc6ce486d03}]
"Wave"="\\Windows\\Alert-ModernMid.wma"
"Options"=dword:00000000
@="Connection established"
"Duration"=dword:00000000
"AvailableOptions"=dword:0000000b

[HKEY_CURRENT_USER\ControlPanel\Notifications\{0D3132C4-1298-469c-B2B8-F28CE2D649D0}]
"Wave"="infbeg"
"Duration"=dword:00000000
"Options"=dword:00000009

[HKEY_CURRENT_USER\ControlPanel\Notifications\{A877D663-239C-47a7-9304-0D347F580408}]
"AvailableOptions"=dword:0000000f
"Wave"="\\Windows\\Alert-Subtle.wma"
"AttenuationCategory"=dword:00000002
"Duration"=dword:00000000
"Options"=dword:00000009

[HKEY_CURRENT_USER\ControlPanel\Notifications\{E0F2B9DD-EDC6-45d4-B440-2C5B5A04A3E3}]
"Options"=dword:00000008

[HKEY_CURRENT_USER\ControlPanel\Notifications\Sounds]
"Repeat"=dword:00000000

[HKEY_CURRENT_USER\ControlPanel\Notifications\Reminders]
"SnoozeTime"=dword:00000258

[HKEY_CURRENT_USER\ControlPanel\Notifications\Reminders\AutoSnooze]
"AutoSnoozeMins"=dword:00000000

[HKEY_CURRENT_USER\ControlPanel\Notifications\ShellOverrides]
"SavedInCallVolume"=dword:ffffffff
"SavedRingerVolume"=dword:ffffffff
"SavedVolume"=dword:ffffffff
"SavedKey"=dword:00000000
"SavedScreen"=dword:00000000
"Mode"=dword:00000000

[HKEY_CURRENT_USER\ControlPanel\Notifications\{695F6B37-EE99-489b-982D-F9A46A944ED1}]
"Options"=dword:00000000
"Wave"="Alert-Guitar1"
"AvailableOptions"=dword:0000000b
"Duration"=dword:00000000
@="RSS Hub: New Items Received"

[HKEY_CURRENT_USER\ControlPanel\Notifications\{3C850506-07F3-6035-E8F9-C29F19A93AF2}]
"Duration"=dword:00000000
"Wave"="\\Windows\\Alarm3.wma"
"AvailableOptions"=dword:0000000b
"Options"=dword:00000008
@="Messaging: Downloading MMS"

[HKEY_CURRENT_USER\ControlPanel\Notifications\{3C850505-06F3-5035-C8F9-C25F19A93AF1}]
"Options"=dword:00000000
"Duration"=dword:00000000
"Wave"="\\Windows\\Alarm3.wma"
"AvailableOptions"=dword:0000000b
@="Messaging: Sending MMS"

[HKEY_CURRENT_USER\ControlPanel\Notifications\{3C781384-05F3-4035-A8F9-C23F19A93AF0}]
"Wave"="\\Windows\\Alert-Blip.wma"
@="Messaging: MMS downloaded"
"Duration"=dword:00000000
"AvailableOptions"=dword:0000000b
"Options"=dword:00000003

[HKEY_CURRENT_USER\ControlPanel\Notifications\{70C48D00-C1A6-43cf-B4C5-5B4E771E2462}]
"Options"=dword:00000008
"Wave"="\\Windows\\Alert-Blip.wma"
@="Messaging: MMS sent"
"Duration"=dword:00000000
"AvailableOptions"=dword:0000000b

[HKEY_CURRENT_USER\ControlPanel\Notifications\{0CD9B91C-BEA7-446d-9857-BD2F1E6BFE80}]
"Options"=dword:00000000
"Duration"=dword:00000000
"Wave"="\\Windows\\Alarm3.wma"
"AvailableOptions"=dword:0000000b
@="Messaging: New MMS report"

[HKEY_CURRENT_USER\ControlPanel\Notifications\{C3465585-39EF-4c9b-B2A3-5558BF27BFB0}]
"Wave"="\\Storage Card\\My Documents\\My Ringtones\\PICARD.MP3"
"Duration"=dword:00000000
"AvailableOptions"=dword:0000000b
@="Messaging: New MMS"
"Options"=dword:00000003

[HKEY_CURRENT_USER\ControlPanel\Notifications\Default]
"LedRefCount"=hex(0):00,00,00,00
"Wave"="*none*"
"Duration"=dword:00000005
"Options"=dword:0000000d

Understanding the "windows" registry sometimes helps :p