Has it cracked it?? if so weld it up then beat it flat with a hammer and block. That is providing the metal is good.
If its really bad then you could always cut out the damaged area and seam weld in a new section. If you do that offer up the subframe to get the subframe mounting holes in the right position.
Right ignore what i just said, buy a new toe board section from somewhere like M machine or somerfords and replace it. Also you may have an issue with the inner wing as well. The lower bulkhead section does not look too good either but it is difficult to judge from the photo.
Before you cut out the damage i would use a club hammer or something similar to see if the damage will straighten out especially if it is pinching in the inner wing. This may relieve it but whatever way you look at it it has had a serious clout and will need to be done carefully.
Try and take a few more pictures from different angles to really show up the damage.
Edited by sonikk4, 24 June 2011 - 09:39 PM.