I'm not sure what the kickstart version numbers mean, perhaps somebody else can translate. Alternatively on the purple kickstart screen (if you have no hard drive connected and no disk in the floppy drive) it will tell you the version, i.e. 2.01, 3.0 etc.
If you have 2.01 then you have to install Workbench 2.
As for WHDLoad, you can download it from Aminet and it will allow you to install your floppy games to your hard disk. You will need some additional fast ram installed for it to work properly.
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moto