I have found the disc in an old (broken) computer, now, i just can't open the disc tray, thanks anyway!

I need help with Galactic Adventures, becuase I loast the disc for it but i still have the serial number, so if someone could help me that would be great.

when i load up the creature editor it shows space and then a moon apears also when i press the pause button it shows a picture of the galaxy thing on the main menu without the worlds and gui on the left

hey i have windows 7 and ga how to i use it