This is what I did with RedHat9 from a DVD cover disc. Download Undisker click here create a folder on your drive under C:\ i just called mine B use Undisker to extract the first disc image to the folder and look in the folder to see if you can see autoboot file if you can copy all the .iso Images to the same folder. you then need to go into DOS with a Boot Floppy disc a Win98 should get you there click here Follow the instructions bellow I have to mis line as you will not understand the instructions.
Start comp with floppy disc and leave it till it gets to A:\>
Next type C: press enter
type CD B the CD is for change directory
this part I cannot just give instructions without knowing what folder autoboot is in.
So if it's in say dosutils folder.
you would type next CD dosutils then when its changed you just type autoboot and press enter and it will start to load Mandrake