So, I just made my first attempt at soldering my Tri Cree LED. Man, getting the heat to soak into the pads was really tough. I think I may need a new soldering tip as I couldn't get it to pre-tin and couldn't get the solder to easily flow. Maybe it's my solder? Any suggestions here?

Anyway, I finally managed to get the positives wired up and I am ready to do the negatives. The red LED is obvious, but the other two, not so much. Is there a diagram that shows which LED is which?

Also, I tried my best not to touch the dies while soldering, but I was wondering if there is a safe way to clean them to be extra sure everything is good to go.

Thanks in advance for any and all help.