Converting to mac

 am converting from using my MY BOOK Essential with PC (Windows XP) and am converting to iMac.  Please advise on what I do? Replace software?

Sorry, to better assist you let me get this right? You are formatting your drive in order to use it with a Mac computer? 

Dude, I don’t get your post. You mean you want to use a MyBook Essential on a Mac? If so then Awopero’s right and you just need to format the drive on Disk utility, no software needed.

If that’s not it then what is it that you’re trying to do?

hello… anybody home?