Removing applicaions from HTC Touch Pro

[simplelife]

I am new to this site and not sure if I am posting in the right area. I have put too many applications on my Sprint HTC Touch Pro and now it is not working correctly. I have several shells (SPB, Winterface and WisBar) and wnat to try to remove two of them and keep the SPB, but when I try to remove them, I can't because I get an error message that they are in use.

If I have to have eveything reset, will I loose all my contacts and pictures?

I hope someone can help me....please!