No I don't think they have started selling single game tickets yet but I could be wrong. I know I got another email from the Blazers selling flexgroup blazer tickets. I think I heard that single game ticket sale won't be until early Oct. I do agree with you getting single game tickets for opening night might be pretty tough. Your best bet might be through a ticket broker or craig's list.
I know someone in ticket sales for the Blazers and they told me that opening night will probably be sold out when single game tickets go on sale due to all the group sales and other packages available.
Glad to see you on S2 Sabas4mvp. We seem to be getting more posters then I really thought would come over from BBF.