I just tried installing a new asus rampage iii formula board and screwed up

I had an existing install on my hd of win 7 ultimate upgrade.
The drive came up as not found by the asus board but I was able to load a new install of win 7 onto the drive just the same. I had backed up all the earlier stuff to my usb hd via "acronis home 10".
I put a few drivers onto the "new" install then decided to transfer stuff from the saved acronis file.
I left it run with the tag to switch of pc when done.
Next day I try to fire up and nothing

I think I screwed up here as it may be the old system stuff tried to write to a new system?
Whatever---I decided to format the drive via win 7 install command prompt.
Now I get the "no bootmngr" thing and worse ----- I cant install win 7 as it does not see a drive

It asks to load drivers but I dont seem to have them???
So what do I do?
Incidentally----- i ordered a new 600gb raptor drive so am I gonna have same problem and is it safe to format that with win7 command prompt?
Sorry for the length of this and more than one question but I am soooooo choked

Admin--- If this is in the wrong forum thread please move

Thanks.