...forget about it.
Reasons:
1. The finalized version will hit the store shelves in less than a month [in some countries] so don't waste your time and bandwidth.
2. There are already others in the FS community who have devoted their time and effort to provide us all with screenshots and more conclusive details about the new sim so that we can make sound decisions of our own on whether or not some of us should buy FSX and how far we should upgrade.
3. Buy not wasting time to get the Beta, you get to save those extra $7 from being spent on the File Planet subcription that you originally intended to spend it on so that you won't $7 short of buying FSX Deluxe when it comes out. If the subcription costed more, then that's good because you get to save more money for the Deluxe.
4. In the time it takes for you to download the Beta, you could've read most of the forum threads that provided all the details of the Beta. Which takes me back to #2.
5. For the love of god, the Beta is huge [about 8-12 gigs]. Even broadband can agree.
So there you go. If you don't have the Beta by now, then forget it. You don't have much time to enjoy it anyways before the finalized FSX comes out.