Thanks FPSDude, I'll have a read of that section
As for my model, the segment editor has solved the problem, even though it took me almost 3hrs to break it down into the relevent meshes.
However after solving my original problem, I find im facing a whole new one
The problem is my character cant ascend the staircase. It probably has something to do with the height of the poly, but as I said, the model is to scale. so if anyone knows how i can get my character to climb the staircase i have made (see pic)
NOTE: Each box is 10 pixels high