damn, so I have to resolder? I think i'm going to have difficulty removing the enter key, as it's in between two plate mounted stabilizers. Yes they are Ivan's r3 black pbt caps; I've waited so long to use them and now with my board I totally @#$@^ things up. 
Yeah, soldering is probably the only way to go about it. Even if it was possible to get the switch back together and working properly (which I doubt), the best way to get at the innards of the switch is to desolder. You won't break the switch anymore by seeing if you can get the pieces back together, but even if you do, I wouldn't put too much faith in that switch ever again. If you've been able to pull the stem out once, even if you get it back together, it's more likely to happen again, as the measures that are supposed to prevent the stem pulling out have likely been compromised.
Getting the enter key out doesn't look like it's any more difficult than any other key. Desolder the two pins on the PCB, unclip the switch from the plate, and it should come right out. The stabilizer shouldn't actually interact with the switch, so it should be just fine.
I am really happy with the quality of those caps once they're on my board, but I won't be buying any more caps from this manufacturer (Gateron, IIRC) until I see proof that they've fixed their molds. It's just not worth the hassle.
