RE: UT-Austin...
I don't know everything or really ANYthing about the admissions process due to how convoluted all the schools insist on making this process. I do, however, know that the websites are usually the last thing to get updated. If you were admitted, they'd probably email or call the few students admitted before taking the time to make any changes to each individual application online. I would guess they do that all in one swoop, including the rejection notices on those whose applications didn't make the cut. It seems strange that they'd update just the financial aid page without updating your entire online application to let you know you've been admitted. That's just my $.02. I know we're all looking for any reason to believe we've gotten into a school, but I think its still too early to tell. Nothing is for sure until you've got physical proof that something has happened.
On that note, good luck to all of us still waiting for decisions. I hope things heat up for everyone in the next 7-14 days!