game zip question

[Jessecue]

I have downloaded the game I wanted (amiga game) to my PC windows 2000 computer. I formated the the the 720 floppy  on PC(yes a real 720 disk)   copy game to it. formated my other 720 disk in my amiga opened diksmater and read pc disk with cross dos and then copied it to my blank formated amiga disk. using 2 floppy drives
I can see file files but  they do not run on the amiga...but if I unzip them on the PC game will run on pc what did i do wrong here? it looks like a lot of amiga files or down loads are in zip format..I'm using workbench 3.1  on a hard drive.
I need some help here
Thanks

[Jessecue]

I need some pointer on how to do this ... such in commands  ect ect

[Jessecue]

I have my files copied from a CD to a floppy using DM files are still.zip  I have unzip in my C directory. I don't see it in DM on menu but if I try a LHA unzip drive works but at end files are not un ziped I need so help here....oh I did not see douments on how to use this so plz bear with me thx.

[Jessecue]

I have downloaded  the game EAB file server so I know I have a good copy.
What Is a good  unzip program to use with workbench 3.1 ?
Do all .zip get unziped through a CLI shell? I want to learn how to do this but no manuals and I have lots of question and would like examples on how to do this
Thx