Wirelessly posted (htc Pocket PC: Mozilla/4.0 (compatible; MSIE 6.0; Windows CE; IEMobile 8.12; MSIEMobile6.0) Sprint T7380)
1. I would do a keyword search after you uninstall and see if you can find anything but i bet if you do find anything those items will be benign. You could move those files to a disk and delete them from your hdd and then you could always put them back if need be.
2.I would install Office first then reboot. Then install Activesync, reboot, and then create a partnership and sync at least once to verify that it works.
3. Reboot again and then install your files. Then sync again.
Good Luck!