Heya, I have no experience with Macs, but it took soooooo long on my shtty dial-up connection to see your screenshot that I gave up. I have a question or two, you put a bigger HD in, was it totally clean( ie. 00 formatted)?? If it wasn't idenical to the the one installed I can see issues. Put the old one back in and see if it still works. Use another machine to dump your HD info on the new ( reformatted) drive), install the new drive, dont do other things at the same time get that working first. Installing a new OS on a machine thats not functioning in the first place is a NONO, you supposedly work on these things you should know better

It is my thoughts that you should have reformated the new drive first, then installed it, then, with a totally clean PC installed the OS. Little steps man. Personnally I'd have done the dump on the new HD, if it didn't work then there is something wrong in the format? Dunno, just thot I'd be the first to answer ya (heya I'm an admitted novice, but logical). More info would be great, like model no.s of what you have and what you're workin with, its how you ask the Q's as much as what is wrong