Actually Simple Google Analytics fully supports this from the first version. Read the above comment to find out why the tracking may be thought to be off for conversions.

The Easy Google Analytics mod definitely has major issues with tracking conversion due to the way it is setup. I've heard this from a lot of others, and in my testing found the same to be true.

The Simple GA tracking is the only accurate solution to date that I am aware of and is being used in over 7,000 stores at the moment with no issues.

Hope that helps!