Inspiron 1545 won't start "Missing Operating System" Help please!!

Right, i was on my laptop yesterday afternoon when my display driver crashed but fixed itself. I restarted but it wouldn't load past the dell startup page. It went to the black screen and said "No Boot Server". I looked online for answers but ended up putting the Dell Operating Systems Disk in as people said it would help.

Well, i pressed f12 and loaded the cd, it said it was loading files then it went to the windows start up page which was great! It gave me the list of options such as "System Restore and System repair etc". I clicked all the options and nothing would work, always messages saying that it was missing software or something. It gave me the option to reinstall windows 7 but it still wouldn't let me.

I basically gave up for the night but now this morning, it would't even load up to the list. It would say it was loading the files then the windows start up page then it would go blank with my cursor. I've tried looking online again but they only suggest pressing f8 or f10 which doesn't work as the message "No operating system".

I looked on the BIOS page and on the night it showed (none) next to hard drive but this morning its showing the 320gb hard drive.

I've tried taking the battey out and ac adapter then turning it on.

I've ordered a new hard drive to try it but obviously it's not here yet.

I also did a diagnostic scan and it found an error code 0f00 1332 and it being a time out problem?

I've tried pretty much everything!!

I might just take it to get looked at by somebody but if anyone knows of anything i can do myself, please let me know!!