Hey Koractu, welcome to the forums!
There IS a button to make the game download an update - when you first load up the game, click on the "Options" button then click on the "Updater" tab at the top. You'll see two buttons - click on the "Clear Updater Registry" one first, then click the "Check for Updates" one.
If the game still can't find an update, clear your Temporary Internet Files, then click on Start
Run and type this: "%temp%/UAB" (Without the quote marks). A folder called UAB should open. If there are any files or folders in the UAB folder, delete them all, then try to update the game again and cross your fingers.If that doesn't work, let us know. Mike might have some further ideas on what you could try but this *should* work. Good luck.
