How do you Make a Boot Disc?

It sounds more like it's a Windows disc you need, not a boot disc per se.  If so, you cannot "make" one.  You can however order one:

http://support.dell.com/support/topics/global.aspx/support/dellcare/en/backupcd_form?c=us&l=en&s=gen&redirect=1

Try this: http://www.allbootdisks.com/download/xphome.html

Thanks

It only has boot info for service pack 1 and 2. My computer is 3 what do i do?

It only has boot info for service pack 1 and 2. My computer is 3 what do i do?

You could use the XP SP2 boot disk available from that site, and then just install XP SP3 yourself :emotion-5:

But you'd be better advised following ejn63's advice, and requesting an OS disc from Dell.