My website uses two pages to generate nearly all the content.

I have fixed the complaints Google had with browser URL rewrites and canonical references only to have it choke on redirect.

I use htaccess to convert the desired public-facing url (say www.mysite.com/ThisIsPage1) to the page that generates the actual viewable page (say www.mysite.com/genpage?word=ThisIsPage1).

I tried adding a 302 redirect in the htaccess file, but Google did not think much of that.
What is the right incantation to make Google index /ThisIsPage1 and not worry about how I handle the page rendering?