What a weekend for my TI

[shaneynclan]

so I was preparing to play manhunt and as i was sitting down i sloshed some of my cup of water onto the front panel of the ti.
swearing and cursing, i grabbed a towel, and began to wipe down the front, and get as much as possible from the underside of the knobs.
I saw a couple dribbles begin to slowly cascade their way down the right side of my part selector, and I panicked. I decided that it was time for TI open heart surgery.
I began to deconstruct the monster, carefully organizing the screws. Needless to say, I took it apart and put it back together with ease, and my TI is humming happily.
I did however, hit a snag while taking my TI apart.
I got the backbone off, and most of the mainboard, but something was still keeping the mainboard in place, and I didn't want to just start ripping the knobs or any pieces of the mainboard out.
So does anyone know how to proceed that has opened their TI before?

I took a picture: