Hi Ed...You just go to www.tuelz.com and download it.
I haven't set up individual downloads yet, so you'll need to download the entire package of free tuelz. Just be sure you do NOT over-write your full power tuelz with any of the free ones.
For more LSI research, you can check out:
http://www.quintura.com/
(which is included in the TuelBar)
And, I also like to use Google Sets for more LSI suggestions:
http://labs.google.com/sets
The LSI Tuel, Quintura and Google Sets are all FREE.
(I think I'll also post this in the marketing/seo forum)