I recall running into a patch mod that fixed that. I'll see if I can find it again.Thanks, Smart Moving currently breaks the rope anchors/ladders from extrafirma, so until that is fixed, smart moving's iffy. Sword Skills, haven't looked at yet.
Edit: Found it!
It's coded for 1.6.2, though, so I'm not 100% sure it will work. You might be able to contact the author or find someone else to update it, though.