OptiPlex GX620, install Windows 98

Could someone please help me out here

Do you have a Windows 98 CD and product key?  If you have both, use the dvd of optiplex to install. Dell has driver for XP.  It may or may not work for 98, you can try. 

I have burned copies of a disc that got scratched up severely

By the way this one is the flatbed case one not the tower

BTW does this machine use agp or pci for graphics

And a legit product key

Yes but it's a copy of my own disc I accidentally scratched the original

And yes I have a legit key to go along with my discs I burned legally 

I have a copy I burned to dvd from my own legit discs but sadly the legit one got scratched I got it from my teacher she said she didn't need it anymore and knew I liked messing with computers

Can fdisk see ntfs partitions

So specs are alittle different there's only 1 pci slot and one slot for a graphics csrd

Why does the boot device selector look like the screen you see when booting off cd just curious

@redxps630 yes I have afew burned ones but they're from my own cd

I know one time I was messing with a Dell latitude and it had the same sound chip in it so I was like Intel ac97 under Windows 98 and it just worked that's cause I found out that adi chips are actually realtek ac97 chips under a different branding

@redxps630  i can't figure out the driver stuff for somereason when you are available some help would be appreciated thanks