It's ok guys I found a way to do it. download stuffit expander 3.5.1 from http://macintroid.tripod.com/downloads/stuffit351.zip and then download stuffit expander 4.0.1 from here http://macintroid.tripod.com/downloads/stuffit402.zip

and then put the .bin file on a floppy (after unziping on the pc) (using transmac to decode and put on a floppy) then unzip (from the pc)the stuffit expander 4.0.1 and put the .sit file on the floppy . on the mac side use stuffit expander 3.5.1 to unpack the .sit of stuffit expander 4.0.1 and then your done!

It sounds hard but it is a piece of cake! I couldn't believe my eyes when I saw my games unpacking without a hitch!