Emax

Hi there,
I bought an Emax on Ebay and I am not sure if any of the previous 
owners upgraded it to SE OS.
The guy who sold it to me included a few diskettes, some of them 
labelled with "SE 1.1", some of them with "OS 3.2". When I insert the 
ones labelled with "SE 1.1" and check the OS in the Master Module it 
says "SE 1.1". When I insert the other ones it says "3.2". 
Now, this is not surprising, since the OS is on the diskette. But does 
this mean I have SE 1.1 installed on my Emax? What if someone just 
copied SE 1.1 on these diskettes, without upgrading the Emax? Would 
Emax accept these diskettes or would it display an error message?
One more thing I don't understand: If the Emax OS is only on the 
diskette, why do you need a special diskette to upgrade it? It would 
seem logical to just put the new OS on a diskette and load it. 
Thanks for your help,
Ben