OK, I will try to add a little to the confusion. I think the last thing you said is that you get stuck with the text screen that says "boot from CD" at the bottom. This likely means that the boot sector on your hard disk got messed up or that the drive went bad. But first, check your BIOS to make sure that you have your hard disk in the list of boot devices. There should be some item in the BIOS setup that says something like "boot sequence" or "boot devices" etc. Make sure you have your hard disk on the list. If it is not there, add it, and if it is there, make sure it is the first device. Then try booting again. If it doesn't boot, then you may need to boot off the CD and try installing a fresh windows on there, including formatting the disk etc. which will wipe out all your data on there.
One thing to check is if you can boot to a c:> prompt, you can type some DOS commands to see if you can see any data on your C drive. A simple command would just be to type DIR and see if it lists the various directories on the hard disk. If you see stuff, then the disk is fine and just the boot drive got messed up. In that case, if you have data that you absolutely need to get off that drive, then you can take the disk and install it as a second disk in some other computer and take the data off, before formatting and installing a new windows systems on it. If you don't need the data that bad, then go back to the windows CD and this time, choose the "recover" option that will probably warn you about data being lost, but should return your computer to the same state as when you first bought it. In any case, good luck!