Basically, my HTC Touch on Windows Mobile 6 was refusing to let me install anything on it, either by download or via Activesync. I was getting very frustrated and had this problem for months.
I finally came across this article that solved the problem:
Anyone have any weird fixes like that to share? If any of the MoLeNET colleges are using the HTC phones and have this issue, this fix may be useful to you so TAG IT at once!