Bought new computer. Do I have to buy Microsoft Office Teacher Edition 2003 software again?

It's a little tricky as it hinges on what happened to the old computer. If it is still in use and MS Office is still installed on it (and able to be used) then that software key is attached to that particular installation.

If you wiped the old computer, or uninstalled the MS Office software, then you are free to install it on the new computer.

Are the old lectures in Word or another program? You can try launching Word first, then using the File > Open command and then navigate in the dialog box to the location of the files. Or do the drives not show up in My Computer? Can you be a little more specific, Doc? We need more information before we can diagnose ;)

If you bought Microsoft Office, Student and Teacher Edition 2003 and have the CD and the product key / License sticker, ( the little Microsoft sticker with the xxxxx-xxxxx-xxxxx-xxxxx product key) then you can put it on any computer you want. Meaning any single, one and only one, computer you want. It just can't be installed on multiple machines simultaneously. Unless there was some weird software bundle deal where it was a part of some other piece of software, your cool.

Just go top add / remove programs (control panel) and remove it from the old and install it on the new one.

If it gives you grief activating it over the internet, just activate it over the phone. This happens sometimes if a product key has been activated multiple times, or other reasons known only to Microsoft.

Personally, I hate Microsoft. I use Open Office by Sun. Totally open source, totally free.

If you try to install 2003 when you have 2007 it will not work . You will have to delete the 2007 if you want to be able to use the full version of 2003. Or you could just go and buy a product key legally from microsoft for your 2007.

When you buy software, you own the license. So when you load it if there is a problem with the license, just phone microsoft and explain to them you have a new computer that you want to transfer the license to. I don't foresee any problems unless you try to run the software from both computers.

The new computer will read the old lectures once you get the software loaded.

Yes, Each disk is licensed for only one computer. If you install it on a 2nd, Microsoft will not allow it to update. You need to make the purchase before Jan 10, 2010, Microsoft lost a lawsuit and has to discontinue sales of Microsoft Office by that date.

As for opening your old files you might try OpenOffice. It supports multiple file formats. You can download it for free for www.openoffice.org