WOOO!!! I didn't have to do it all over, after getting frustrated with trying to paint the weights again. I'll never get used to the fact that I get the hip right then I get the knee where I want it and then I have to repaint the hip because something I edited in the knee messed with it. Pain right is the ass. :headbang:

I found that if I go to Skin>Detach Skin Option Box>Keep History
it will obviously keep the history of the detached skin, which comes in handy when you reattach the skin.
I adjusted my knee joints further forward by highlighting both knees and hitting Insert on the keyboard, and moving them forward. I then highlighted all the joints and attached smooth skin. It kept all my painted weights So I didn't have to do any of it again. So I picked up where I left off and have done the IK's for the leg!

Hopefully that's useful to someone else at some point in time.