IF i am reading your question right (just me...hehe), then restart PC with yer ME BootDisc in A drive. You will enter a screen after a minute, where it says.....
2. Start PC WITH CDRom Support,
3. Start PC WITHOUT CDRom Support.
4. Minimal Boot
Choose 1. "HELP"
then when you arrive at yer Help Screen after a 30 seconds, hit ALT on keyboard (that highlights FILE TAB on top of Help Screen). Then use DOWN ARROW on keyboard to scroll down to EXIT on File Tab. Hit ENTER on keyboard. Wait 30 seconds. You will then arrive with a DOS Prompt A:\
you can change that to C: ENTER (fer C:\ drive)or E: ENTER (fer your CDRom Drive).
NOTE: Drive D:\ has been TEMPORARILY assigned to E:\ untill you re enter Windows ME.
hope this help