No worries, you aren't the first one. 🙂
Here's a PSD with an adjustment layer:
http://n4te.com/x/3719-adj-test.psd
Running the latest script gives me:
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That is correct, the image looks like it does in Photoshop with the adjustment layer applied (the brightness/contrast adjustment layer makes the green more washed out). Without the adjustment layer would look like this:
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If you can provide a simple PSD like this that doesn't give you the results you expected, then we can take a look.