Am I missing something here, or does the atari 2600 emu -Z26 not work with zipped roms

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I thought it did for some reason, but just started playing some more with this emu last night and haven't managed to get it working with zipped roms.
Since there are 2 file extensions in the good2600 set (.a26 and bin), and by the sound of things (from what I read of another thread), no way to have 2 rom name extension in mamewah (which I have also just started playing with, well the new version anyway), I guess this means I will have to setup two emu's in mamewah for the 2600 stuff.
Would this be about the gist of it ?
Cheers
Martin