One of the threads I linked in a post above has a pretty good blow-by-blow description of removal and installation:
http://forums.pelicanparts.com/911-engine-rebuilding-forum/643424-anybody-here-ever-replaced-piston-squirters.html
I'm assuming that for the staking, I'll grind a chisel tip or something similar to an appropriate size, as that's not a tool I currently have in my toolbox.
Also interesting - I've communicated with a few people on whether or not to use loctite on the replacements. I heard a clear "NO" from both. I did find a note in a factory service manual however that says "YES"... It's from the 993 FSM, but there isn't much mention of the squirters in earlier manuals that I could find. Maybe 3.6L cases are different in this area?
I received some stock replacement squirters in the mail and one of them has a tip that's a little wonkey - enough so that I will not install it in my engine...
One step forward, two steps back...
Here's the not-quite-right tip next to a good one:
