Laptops don't usually come with a full Vista DVD so repair options are very limited when the OS is that damaged.
I have to take your word than none of the start options work so the next step is to save your files.
I suggest a boot with any Live CD (see google and use Live CD List) to get a bootable easy to use full OS running off CD then copy your files out to network or other drives.
Now you can also try any of those Live Antivirus CDs (google that!) and hope they can cure it. But as this is a laptop without a full Vista DVD we can't use any other repair methods and need to save the files, try the antivirus CDs and hope for the best.
If that fails, you use your recover to factory options.
I think my computer has a virus; when I turn it on it has the options to start on normal, safe mode, safe with networking, or last known good configuration, etc. But no matter which option I try, when it gets to the loading screen, the loading doesn't stop, it never gets to the desktop.
Do you know of any website where I can download a repair or recovery or reformatting disk from another computer? Or if anybody knows any other way to fix this I'd really appreciate your help.
It's a laptop Panasonic "CF-52 personal computer" with windows vista.