Here's my two cents: I am currently re-designing PeabodyCash, my AP (see sig) and populating it with promo tools. I run everything myself so it's VERY easy to get ahold of me: email, ICQ, anything.
BUT with the larger programs I think they're going through 'shrinking pains', the opposite of 'growing pains', and they're scrambling, freaking out, trying to figure out how to just maintain their overhead, salaries, taxes, etc etc, so they're letting things slip. Either that, or they've decided 'fuck this shit' and are turning their attention towards mainstream or something and just letting their programs die.
I LOVE my affiliates so signup with me and I'll communicate with you quite nicely.
Good luck! It sucks to whistle in the wind and never hear anything back.