Originally Posted by FBinNY

For what it's worth, I think we're approaching this wrong. the OP has opened 2 threads on the subject and is getting a bunch of opinions piecemeal without getting an overall sense of his problem.

I think it would be best for the OP, if he take a break, and review a number of tutorials about rear derailleur installation (link to over a dozen), so he can see the big picture and narrow the range of his problems (if any besides adjustments). Once he's close and can identify one or two specific remaining issues, then maybe we can help.