http://pastie.textmate.org/private/pdc7ncce9weyg2myz8uqba Hangs TextMate
I can't replicate the hang, but looking at the link you're not using the ActionScript 3 language - hence the missing package color. As there's no way for TextMate to know whether it should use AS3 or AS2 it picks the first in the list - AS2. There's two ways to change this, the language pop-up menu in the bottom of the edit window, or via ctrl- alt-shift-a.
http://pastie.textmate.org/private/ecrerngickkuhu2c3dsyjq CDATA end block not being spotted
Again, I'm not having problems here.
It's a long shot but have you downloaded and installed my ActionScript Utilities bundle? There's a language file in that I was using to test ideas with. I've recently deleted it but the changes may not be in the zip that's on my blog.
Cheers, Simon