Hey man.
We have the EXACT problem. I too cannot access the certificates to get a simple development certificate from apple.
The problem is because neither of us have been able to log on right before their site got hacked. Because a week before they were hacked, they placed an "updated license agreement" which everyone must agree to before getting access to anywhere on their site.
Those of us who have yet to do so, will have to agree to it before accessing certificates. But low and behold, the "updated license page" is still offline!
Only God knows when this roller coaster will be over for us. I have simply stopped being outraged as it has gone on to be TOO RIDICULOUS.
Do you know... that apple chose to restore VIDEOS first before the updated license agreement???? V-I-D-E-O-S.
They have no clue what "priority" means.
I believe we will have to wait until 100% of their site is restored. Because it seems they will bring this critical "license agreement" page up last. And that could take 1-2 months from now considering apple's turtle pace.
I no longer have any hair left to pull, i've pulled them all already.