Not a problem posting here, I just wasn't sure you were aware there are other forums.
Well this is a strange one. I tried AcomData.com and got nothing as well so it looks like they are out of business. I still can't find any manuals or drivers for this drive.
I see you said My Computer doesn't show this drive is connected, but I wonder if it shows up in Disk Management? If you haven't tried that, do that next. Control Panel > Administrative Tools > Computer Management > Disk Management.
If it does show up there what does it say about this drive? Can you right click the drive in the bottom half of the screen and see options? If so, which ones?