Tech support could not tell you what to do because they are not trained to deal with UFTree. If they can't find an answer within a click or two in their computer program . . . There is at most, two people still employed by that genealogy.com company who know beans about UFTree and they don't work at the email or telephone level of support.
One of the reasons so many of us are switching to TMG is TMG's accurate and quick response user support. I haven't had to ask them anything yet but I've only had the program about two weeks. There are two lists/websites that experienced TMG users use to help us TMG Newbies.
Yes, learning a new program is a pain but only a small pain when it is a good program with lots of help. Buy TMG 4.0a at half price so you can buy the 32 bit TMG at even less when it comes out sometime after the first of next year. Don't use TMG for any publishing you are planning. Go ahead and us UFtree for now. If you are not planning to publish for a year, then go ahead, buy TMG and begin practicing but do not enter new data into TMG while your are practicing. When you think you understand TMG pretty well, go ahead and import via TMG's GenBridge. Only a few unimportant items do not transfer.
DO NOT GEDCOM your UFTree project(s) into TMG. When you GenBridge into TMG, the UFTree data is untouched. I have GenBridge imported (and deleted) one UFTree project into TMG 8 times while I learn what happens when I do this or when I do that.
In the meantime, keep asking for UFTree help on this website. Ruthie and other user experts will keep helping.