Usually geekgadgets binaries (and sources?) are to be extracted to the root (not the volume root of course, if your geekgadgets isn't supposed to be there), say GG: (/GG). So as long as you know it is a GG-archive which you need, it won't be far off to use that location. Also it's advised to use a proper program for extraction, namely Amiga lha or GNU tar as required.