How to roll back to 1.7 EFI Firmware?

Hey folks,
I just updated my late 2008 Macbook Pro to EFI Firmware v1.8, and am finding that suddenly my Firewire audio interface can't play a single thing without crackling, even in simple programs like Media Player, on my Boot Camp partition.
Using firmware version 1.7, everything was just fine. How does one roll back to an earlier firmware version? Does it have to be done by an Apple Tech? I am fairly certain that this can be done, as people in other threads seem to have successfully done it, and mention a 'rollback tool.' However, I can never seem to find any links or instructions.
Thanks!
HK

The "roll back" tool you are referring to is not for your model (late 2008). It was for the mid-2009 MacBook Pros. The machines do not use the same firmware. Rolling back the firmware is something that an Apple tech would not likely be able to do for you. The firmware roll-back tool for the mid 2009 models was not even generally available to Apple Geniuses. It was released only by Apple Corporate after much complaining about a specific problem plaguing those machines. Even after that, most Apple Geniuses were unaware of the tool. You may want to give Apple Support a call and see what they have to say. You may want to check with the manufacturer of your interface to see if they have a resolution.

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