Windows Mobile 6.1

So I just got my new HTC Touch Pro Yesterday, and was quite curious to what extent I can do things to this little bugger

After realizing it runs Windows Mobile 6.1... the internet isnt that healthy with good quality information

hoping here would be best for someone to shed some light on me.

Im posting it here because I don't know if it fits well in mobile phones forum, and it is, well windows.

does anyone know of a good theme switcher? i keep finding bogus websites and ones that do not support 6.1, but 5.0

and... anyone else got the touch pro ?
I love it.. altho a bit laggy, but love it.(mines from Telus)

cheers!