Free shipping issue

I have a problem with my shipping module.

We offered free shipping for a period of time; before that everything worked perfectly.

We have three separate categories...two of which are set to run shipping on a table rate and the other is free shipping...always (those individual products within that category are set as such).

Worked fine before we put free shipping on everything.

Now, changing it back to free on the one category and table rate on the other two...my free category is getting stuck on page 1 of the checkout.

In my shipping modules I have table rate and freeoptions installed.

http://www.theemployeemall.com/chs