Help!

[deediare]

I recently downgraded my friends PSP from 2.71 to 1.50 and it went very smooth. But i heard that to get a good version you must update to 2.00 and back. But here's the problem it now has 2.00 and I'm going to dowgrade using MPH downgrader but everytime I unzip it, Norton tells me the overflow.tif file is the Trojan.PSPBrick.I have heard that this instantly bricks your psp when booted. But I have used this downgrader months ago and had no problems should I ignore it? Or does anyone else have a different downgrader in mind?

[Cooe14]

If you downloaded it from here then just ignore it.

[deediare]

But that's just it.... My computer DELETES it if i unzip it...

EDIT: Nevermind I just disabled my auto-protection now it;s fine. Thanks