Hi Optic, sorry for the delay in replying, only just checked this thread.
The way I finally managed to get around this problem (after a loooong play around) was as follows:
- Leave CD1 in the drive for the reboot
- Abort installation when the screen returns asking you to install (with language selection etc etc)
- It then says "Do you really want to abort", if you click yes then you'll get an error message that says system was not properly installed
- Put CD 2 in
- Under "Installation" -I think- select "Boot installed system"
Hope that this helps you, good luck!