Lacie External Hard Drive not recognized on Mac but recognized on PC

I just got both a MacBook Pro and a LaCie 1TB Rugged Safe External Hard Drive just a few days ago.  I just plugged in my external and I installed the needed software from the drive, restarted and the drive wasn't found in LaCie Safe Manager.  I tried restarting the computer without the drive plugged in, with Firewire and USB, and then I even tried it on my PC -- which it worked on there.  I was able to make an account onto the drive and put my finger prints and everything on the drive, but when I came back to the Mac it didn't work at all.
I can't say it's the drive itself because it worked on the PC.  I don't Tried the Disk Utility and it's showing "999.91 GB LaCie" and then "NO NAME" under it, but tabed over.
And help/suggestions?

Thanks for the ideas, JaEvo and Paul Cuciti. 
EDIT: I tried this, http://vimeo.com/7539772.  I did this on the Mac but I still don't have anything.  I tried both USB and Firewire.  I have power to the drive because, after I swipe my fingerprint, the red blinking light turns steady green.  Also, I don't know if Macs make a sound when something is connected to the computer, kinda like a PC, but mine doesn't make a noise when I connect in the drive -- I don't know if that'll help anything or not.

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