HELP!!
I did something I shouldnt have, I had 3 colors going and decided I didn't like one color so instead of unraveling back to that point I took that color out. Now I have 2 separate pieces...how do I join them back together????

As long as you have both sets of stitches on needles, you can use kitchener stitch to weave them back together. You can find a video here (under 'Finishing'):
http://www.knittinghelp.com/knitting/basic_techniques/misc.php