[Windows Mobile Themes] ChaoticTheory:
I didn't extract the files, I made took the cab and made an EXT out of it, essentially what it does is "runs" the cab and makes a group of files and entries that allows a kitchen to cook in the same thing that the cab does.

Here are the reg entries my EXT has. I did add one line that you didn't have (or at least the EXT didn't) that I found in a different icon set that had no problems with the battery icon. Haven't tested it out that way yet though.

[HKEY_LOCAL_MACHINE\Security\AppInstall\M6Silver Taskbar\ExecutableFiles]
"\\Windows\\HTCVolumeControl.dll"=hex:
"\\Windows\\MMSRes_480x800.dll"=hex:
"\\Windows\\outres.192.dll"=hex:
"\\Windows\\PictureMailRes.dll"=hex:
"\\Windows\\tshres.192.dll"=hex:
"\\Windows\\VoiceCmdRes_PPC.dll"=hex:
"\\Windows\\WLMMessengerResources.192.dll"=hex:
"\\Windows\\FolderIcons.dll"=hex:
"\\Windows\\phcanOverbmp.dll"=hex:
"\\Windows\\tapres.192.dll"=hex:
"\\Windows\\obexinbxex.dll"=hex:
"\\Windows\\shellres.192.dll"=hex:
"\\Windows\\CDMA_RSSI_PPC.dll"=hex:
;<<<<<----- Your Additional Entries ----->>>>>

[HKEY_LOCAL_MACHINE\security\ResOver\Bitmaps]
"BatteryIconLevels"=dword:00000101

[HKEY_LOCAL_MACHINE\security\ResOver\Bitmaps]
"BatteryIconIdStart"=dword:00001001

[HKEY_LOCAL_MACHINE\security\ResOver\Bitmaps]
"BaseDll"="phcanOverbmp.dll"

[HKEY_LOCAL_MACHINE\security\ResOver\Bitmaps]
"BaseId"=dword:00000000

**Added this entry**[HKEY_LOCAL_MACHINE\security\ResOver\Bitmaps]
"FuncDll"="CDMA_RSSI_PPC.dll"

[HKEY_LOCAL_MACHINE\Comm\Security\SystemCertificates\Privileged Execution Trust Authorities\Certificates\1049B790EDA3C369E9C206B44AF16B2657CC1555]
"Blob"=binary: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

[HKEY_LOCAL_MACHINE\Comm\Security\SystemCertificates\SPC\Certificates\1049B790EDA3C369E9C206B44AF16B2657CC1555]
"Blob"=binary: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

[HKEY_LOCAL_MACHINE\security\ResOver\Bitmaps\BatteryIconLevels = (dword) 65]
"BatteryIconLevels"=dword:00000101

EDIT: Didn't work. Trying to just cook the cab in and then run it on first start up, see if that works. Also, if you are looking for some new folder icons I made a set using your set as a template. I'll post a pic when I get a chance.