Wifi won't work AT ALL since upgrading to lion - HOW DO I DOWNGRADE?!

computer:
2x3ghz quad-core intel xeon mac pro
10gb ram
i just upgraded the mac pro to lion, and now i can't connect to the internet via wifi AT ALL. i've tried all the solutions on this site and none work.
i'm a web developer and this is my main computer. it's useless if i can't use the internet. i need to know how to DOWNGRADE the OS ASAP if apple doesn't have a fix by tomorrow morning. (which i highly doubt... seeing their recent track record)
can anyone help?
ps: hey apple, do you hear us at all? this is not acceptible!

Just a suggestion but if you use this Mac Pro professionally and absolutely must have it in order to make your living, you probably need to have a complete backup of your entire system before you do ANY upgrade. One nice thing about the Mac Pro - lots of space for drives.
If you need immediate help - call Apple at the appropriate phone number on this page. They typically do not respond to posts made here. We are just other users like yourself.
Best of luck.

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Nathan Miah wrote:
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Wifi won't work AT ALL since upgrading to lion - HOW DO I DOWNGRADE?!

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