I really had luck:
Just before the agency of the German NOC started its first Sell, I applied for some tickets (Beachvolleball, Swimming, Diving, Athletics and two Opening Ceremonies Tickets) just before the catalogue was online. After a few weeks I got all my tickets confirmed and paid them immediatly. then, 2 weeks ago, I got the payment confirmed and was told that the tickets will be sent in June.
Its really bad to see that nearly all of you guys have such big problems in buying tickets. I dont know what they are doing at BOCOG, but I think its not the only problem they have.
If you try to contact someone from the Volunteer Department, they dont understand you and just have some phrases in their "chinglish". Volunteer Confirmations wont be out before March - May 2008 - ways to late to get a cheap flight. So this time, I will be a tourist "only" - unfortunatly.