Have her call Joanie Colbert (352-430-3503). She runs the partnership desk for TV dupe. However, if your mother only has a guest card rather than a resident card, she's going to have a hard time getting in -- TV requires that guests are only admitted into the rooms (for any activity, not just bridge) after all residents. Sadly, the bridge games fill up quickly this time of the year.
Another avenue would be to register online for a partner at this site:
Villages Duplicate Bridge Club, Florida
You can also have her contact me. I'm available occasionally on Monday afternoons for the Seabreeze open game. (Tell her I play 2 over 1 -- she'll know what that means [most of us do here].)