themeable funtions request

I really like the concept behind this module!
I was trying to use it for event registration thouh and it seems like I would have to do a lot of hacking to be able to theme it.
The specific items I wanted to change were:

The "Do it" text on the form button
The Text that indicates a prior registration/participation

I also second a request to make the Civi tab a configurable option.

Thanks for the interesting start!