|Configuring USB for dos is more art than science. But here's one solution:|
You can also check at bootdisk.com.
Oh, and likely when you copy the files, they'll be in 8.3 format. That is, the files and directories will be shortened to 8 characters plus a 3 character extension. I know it's that way for old dos and 9X dos so it's probably true for ME too. But if it's the ME installation directory you're copying, I think all those files are already 8.3 so it shouldn't matter.
Edit I was looking again at the # 3 post in the above link. I don't know why he REM'd those lines. A REM at the front of a line tells the OS not to load that line. So if it works with the lines REM'd out then you didn't need them in the first place. Here's what the config.sys probably should be:
device = USBASPI.SYS /w /v
device = USBCD.SYS
device = di1000DD.sys
You're not really green until you're soylent green.