I may be wrong. I am just a curious user and not very technical as I am not a coder.
Here is what I did and finally all these steps together, worked.
First of all, let me make it clear, I would not try ANYTHING on a site that is online. So I try is on WAMP first. 101% of time this choice is clever choice as I get to see any potential glitches before hand.
I run WAMP on Windows 7
This is what I did, in order to get rid of those annoying errors.
1) Downgrade PHP to 5.2.11 (I could get that for WAMP)
2) As mentioned here, above, changed the bb-load.pbp line 25
3) I also changed(added) the above code to bb-config.php at the end.
Only then I was able to get rid of the errors. Hope this helps.
Cheers!!!