MPGuino Hookup (WIP)

[ECONORAM]

I actually had replaced a computer power supply previously, so I had a pair of the floppy connectors and wiring available. I did have to refer to the picture above (thanks DCB) in order to confirm I connected things right.
One issue. It seems when I initially went wire hunting, I accidently connected the VSS ground wire to the MPGuino instead of the VSS output. I could not figure out why it would not work right at first. Have I done permanent damage? I have connected the correct wire now, but wanted to check and see if something needs to be replaced before I proceed...