How the heck do I fix the power dongle?

First, thanks for the site - bought a Torx set and got the back of the Evo open. My problem has to do with where the power cord - either a wall adapter or car adapter - attaches to Evo. I don't even know what to call the little piece the adapter slides into. BUT. That particular piece has broken off on my Evo. I can see where it goes, and where the connection points have to meet - but it clearly requires solder to repair. Right now the little metal receptor that is normally IN the phone stays on the end of my power adapter and I use rubber bands and voodoo to keep the charging connection active.

Suggestions? Any way for me to re-secure that thing?