"Create perspective UVs" is kinda funky. There's a nicely done recent tut on it up at daz, as well as at least one fairly recent thread on it here. The daz tut is more informative though. I don't think it's something you'd want to use for every day mapping. As far as uvmapper goes I'd just remap it once you've opened the model there. You can "unwrap" the legs by selecting them by themselves and mapping just that part(s).