Welcome to YT. I think consistency is the biggest thing. I'm wondering if you've tried any one thing for a long enough period. Are you trying to get them to go outside or just on the pee pads?
I hope you don't have to rehome them - just keep working with them. Are you rewarding good behavior - pottying outside - some people say this works for them. I know praise is huge.
YT is such a great place to learn. You might want to use the search options & read up on what has worked for others.
And if you stay around - Ambassador Bubba says you need to sign your boy up for our Little Gentleman's Club - which you can do on this thread:
http://www.yorkietalk.com/forums/sho...d.php?t=106129