RE:
"i don't mind erasing it in disk utility but I wouldn't know how to reformat it for mac. I hate to ask but could you point me in the direction of any tutorials you might know. I am not very good with computers so this is all new stuff to me."
It's much easier than you might think:
1. Plug the drive into the Mac, turn it on, let it spin up. At this point it doesn't matter if it doesn't mount on the desktop.
2. Launch "Disk Utility" (it's in the "Utilities" folder which is inside your "Applications" folder)
3. You should see the icon for the Seagate drive in the left-hand side of DU's window.
4. Click on the the icon for the Seagate to selet it, then click "erase" to the right.
5. From the choices you are offered, choose "HFS, journaled". You can also give the volume a name if you wish.
6. At this point, you can also partition the drive if you want, but that is not necessary if you only want a single volume/partition.
7. Click down below to begin the re-initialization process.
When it's done, quit DU. The drive should now be on the Mac desktop.
IMPORTANT:
If you choose to use HFS, be aware that the drive will NO LONGER MOUNT on Windows PCs. (at least, not without some addition software on the Windows side, I believe)
- John