This is a good disassemble procedure:
http://www.bellybuttonporn.com/wiki/...ur_PPC/XV_6700
There are several posters that have done the screen replacement; you might search the forum and PM them for advise. The biggest warning is not to break the volume control button.
Here's a link if you don't want to do it yourself. Might be pricey from NZ, though...
http://www.pocketpctechs.com/main~un...ir+Service.htm