[Touch HD Themes and Apps] tsalta:
I will explain you for LAST TIME REALLY and im doing it because i see you really dont know what you are doing.

In your Desktop Copmuter the Windows that you use is called OS witch mean Operating System so is the same in the Mobiledevices your Blackstone have a WindowsMobile version witch is the OS of your Device without this OS if your Devices is CLEAR/EMPTY you cannot do Anything and just will have a BLANK BLACK SCREEN its like to have at home Desktop PC without Windows LOL.

Now your Device have Windows Mobile 6.1 version witch is already OLD Build

the Link that i give you is the latest 6.5 WindowsMobile Build so if you flash your device NOW you will have the latest WM 6.5 on your Device but for now ONLY because after some time for example 1-2 weeks there will have Another Fresh Updated version of this Build.. its the same like Update for an Application Update for Windows is the same everywhere the Update mean something new is added or some thing is improved in the version sometimes can be both.

Right now here in the Forum have few diferent Builds

the One i give you is Windows Mobile 6.5 Latest witch is the Most stable, clear and fast WindowsMobile for everyday USE and have a good consumation of your battery. Im using this Windows right now and for this reason im giving you that ROM

Also in XDA have Windows Mobile 6.5.3 and 6.5.5 this is the same Windows as 6.5 but have litle diference and is more finger friendly, the Start menu is on the bottom left corner and many of the buttons are bigger and made FingerFriendy to use your device without alot of Stylus, but this Builds are not so fast as the 6.5 that i give you and also they are not BUG FREE and they are for more advanced users.

Now you need to start with the Latest 6.5 and later when you know alot more about this devices and you wana try something new you can flash again with diferent Build to see how your device will work.

About the last question what will change.. OK Read carefull

You have a Windows 98 on your desktop pc and now you flash it with windows 7, what will be the change?

Of course your device will have complete different LOOK, more colorfull Icons, more widgets, and different kind of the Start Menu, also this new custum ROM`s are with alot tweaks and they have the latest Applications build in.. like the Latest Facebook, the Latest OPERA, and the Latest Camera, the Latest, Album and etc etc all the Applications in this ROM`s are the Latest Versions.

Also the good think is that in this custum ROM`s the Cooker mean the Creator of the ROM is a person like us here in XDA and when he or she cook a ROM they can put in this Windows the Latest things they like and to MIX some elements, for example the Cooker like the Dialer from Touch Diamond 2 and he love the Camera of the Touch Pro 2 so he can get parts from many diferent devices and to cook them into ONE ROM for your Blackstone and this is good because you can have the Latest from everything in your Device. Like i say Latest for now always after 1-2 weeks here is up a NEW build version so after some time you can Flash Again and Again with the Latest One.. if you don`t want you can stay with the ROM forever its your job.

I don`t know how to explain you more clear.. Now you can see your device hows look like, after the NEW Windows will look complate Diferent.