Have you gone to the "Sign-up for projects" page and clicked the "Find account" radio button for every project you're currently signed up for? If you did, were there any error messages that came up? Are those projects still displayed in the sign-up list?
I see there is a user "madd1n" in the stats database that is only signed up for WCG... I'm assuming that's you. No points in the last couple of weeks, though. There is a complication with the way WCG runs their site which makes it difficult to connect to BAM!. About the only thing you can do about that right now, is to keep trying "Find account" every now and then until it works.
Because that account only shows one project, have you used any other account names/email addresses to sign up for projects?
As I already said, I already did that. No error messages. The site always says the action was successful. Yes, they still are displayed in the sign-up list.
Different account names - yes, but most are the same. eMail address is always the same.
The stats signature thingy still says my account hasn't been connected to BOINCstats yet. Isn't that taking a bit too long?