Have 3.0.1 3GS wanting to restore to 3.0.1 to fix camera bug and still keep tethering

[ceek]

So, my camera is doing what it usually does every month or two (with both 1G and 3GS phones): either never opens the shutter, and/or doesn't display pics in the gallery (but still uploads them to iPhoto just fine).

Normally, I just restore the phone, and *presto!* no problem. But now I don't want to "upgrade to the latest version 3.1 automatically" when restoring, as I want to still use benm's simple tether hack. (Also got the whole "The iPhone could not restored. This device isn't eligible for the requested build" message while trying to option+restore on 3.0.1. That's what sent my Google'ing to Saurik's piece).

I just read Saurik's "Catching Apple's Sig Server" article, which I understood about half. I think I understand the principles, but as to whether my iPhone is somehow listed on his server or not (?), and what file exactly on my iMac I'm supposed to amend so I can "Bypass The Overlord," I'm really at a loss (but eager to learn). I get lost on the definitions of all the SHSHiBSSRoot's...

I just want my library to work again, and I don't want to update to 3.1 so I can still tether. That's all I know. Anyone willing to work with a true newbie, I'm all yours.

Sincere thanks in advance.

ceek