Thanks for your answer,
But my problem is mainly that my installation-CDs only have drivers for XP - not windows 7 and 8. And, off course, i would like to use the box i already paid for (although the versions in it are a bit old), without having to pay for an upgrade.
I have a CD-reader, but I cant use the disc to install my programmes, since the installation-disc are for XP - not windows 7 or 8