Okay, from what I've gathered (mind you it's been a LONG time since I've used an Amiga), it looks like you're having problems because you're trying to load the drivers for the GVP accelerator, which it can't find because you formatted your hard drive.
Hitting the left-mouse button during your bootup disabled the GVP accelerator and rebooted your system under the original 68000 CPU.
If your harddrive is coming up as 'Untitled' I can only assume that means that it's both mounted and formatted, and now just needs Workbench installed on it, and then your GVP software. I however have absolutely no memory of how to do this, you might want to check the earlier advice some people have given in this thread.
It sounds like the hard drive is prepared, it just needs to have workbench copied over to it, probably some kind of copy sys: command or something. After that, you're going to want to install the GVP software again.
mind you I could be really wrong.