Would probably work if you have installed TweakUI. Highly recommended tweaking tool. Should be easy to find by doing a search on TweakUI.
I have never used WinME so this might not apply but FWIW:
Edit msdos.sys which you wil find at the root of c
It's normally tagged hidden and read-only so you would have to change this before editing. Under "Options" enter BootDelay=# where # is the number of seconds delay (can be set to 0).
This was from memory and it was at least 2 years ago since I last used Win95/98 so use my advice at your own risk.
Good luck!