Great post, my thoughts exactly. Post your QRK address already so ppl can tip you! 
Yeah, when i'm back at work next week, need to get my main address:)
I have no idea what the blockexplorer problem is, so i will reset the database of the blockexplorer (not the pool) and let abe reimport all stuff.
Hopefully that will fix all issues. If not, maybe quarkcoind's database is out of sync
No, thats relativly up-to-date. (2 or 3 wekks)
But it was maybe that every FastCGI instance started was trying to import, and the database got inconsistent.
Now FastCGi won't import, and the dataimport does now a cronjob, which runs every minute (so it may that not always the newest block is visible)
(Hmm, it may also since the quaktcoind used for the blockexplorer is the same as the one from the p2pool instance. I will later seperate them)
@all:
The Blockexplorer is working again.
Edit:
@other p2pool operators:
On the stats page of the pool i regulary have some spikes going to zero, i think if had had read the forum correctly, then also there is no connection to the miners. If you find a solution, please share it.