On some versions of Kalyway DVD's, when installation is done, reboot, and show welcome screen, and possible (not all) have bug's on there.

If you have, try this:

Reboot your PC;

Press F8 to show Darwin prompt and type:

when system started and show root prompt, type:

/sbin/fsck -fy
/sbin/mount -uw /
touch /var/db/.AppleSetupDone
passwd root
And enter a password for root account, and reboot.

This will at least get you into OSX, though you'll be running as the root administrator account, which is always recommended you don't use.
After it, going System Preferences / Account User and create your user there.

It will make the system work, if possible test and relating.

Goodluck @ all,