I am pretty sure that one would work. I use a All for One Kamelion Hybrid http://www.smarthome.com/59300.html
to control my Satworks 3618. It does not control all features (I had to set up the remote to "learn" each individual feature that I wanted controlled). It works good though (and it replaced 6 other remotes that I was using). I set it up to do the basics and it does good for what I need it to do.
The harmony that you linked to is one of the better (and more expensive) remotes out there so I would think if my remote does it that one should do it better :>
There are many One For All brand remotes that are JP1 compatible. That allows you to downkload custom device files into the remote. For more info on JP1 remotes: http://www.hifi-remote.com/forums/
Also, a lot of those inexpensive Wal-Mart type remotes have learning functions, which will learn the buttons from your Fortec remote. I would recommend going to a better store than Wal-Mart for consumer electronics selection, such as BestBuy, CircuitCity, BrandsMart, Fry's, etc. (even Target)