I'm in the same boat, DJ.
UK here, downloaded on my US account with Qore code, installed on US account, can't connect to any servers with either UK or US account. Wonder if its because I tried with UK account first and thats the account it installed the update on? Can't seem to find the update in the XMB Game Data Utility so wonder whether it directly patches the beta files and, because I did this with a different account to the one I downloaded and installed the beta with, it's somehow corrupted it...