Characer Movement - Climbing up a ramp?

[Cervantes]

Well, after doing some work on Flea's code in the jumping thread, I decided to keep working on it.
I made a very primitive (well, my first) module for collision, and realized that what I have now will not allow for the character to climb up a ramp. How would this be accomplished?
I would have changed the graphic for the character to a drawfilloval, but I have to go. My apoligies, but the code currently uses Flea's Mage drawings, so you'll have to unzip them.

Thanks in Advance