So, I went to the bike shop this morning and they told me what the problem may be. They said my chainline looked good but my cranks and chainrings are so old, I forget what brand they are now, the chainrings are elliptical, they arent actually round. They said that may be my problem w/ the new rear cog... I was going to buy a new chainring while I was there but the guy talked me out of it b/c he said he didnt think it would be worth it b/c of how my dropouts are and the fact I have a quick release on the rear. I have the forward facing dropouts, he said I would have to tighten it up about every time I got on it. He just recommended I get a rear wheel w/ o quick release... So, there you have it. I guess its time for a Deep V.