Hmmmmm, that's not One-for-All's website, that's Rob's. Besides, One-for-all's real website doesn't cover Radio Shack's remotes, just their own branded ones. (although the "old" OFA "official" site did have a section on the RS 15-2133.

I think rob's site did have a 2104 manual, but after "sending this", I'll go there and check, and try to post a link to the correct manual. BUT:

There are a lot of silly restrictions to the 2104's HT "mode", and it's possible (likely) that the way you want to set up "HT" isn't possible, thus giving you the impression that it's possibly the wrong manual. The only way around (some of) those dumb restrictions is via JP-1, particularly with one of the nice "extenders". Gimme a few and I'll check on that manual and post back again.

Jim