Thanks for the suggestions, I think I can lick this now.
Smee, did you set up your CD drive in the i-Net as the Primary Master (IDE1) with the HD as the Secondary Master (IDE2)? The i-Net CD drive doesn't appear to have any Master/Slave jumpers, so it can't daisy chain into the same connector as the HD.
Making a boot floppy sounded good until you remember that the i-Net doesn't have a floppy drive to put it into, oops.
If I can't find a Win98 bootable CD, I think I can also make a Win98 Startup Disk on my desktop box (aka Recovery Disk), then copy the floppy over to the i-Net HD while it's plugged into my desktop box.
I dropped a 733Mhz CPU & 256MB PC133 RAM into this thing, add wireless keyboard w/integrated trackball and this should be perfect for the entertainment center. MP3s and streaming audio/video over the home network, and wireless web surfing and computing from the couch on a 32" TV. Gawd, life can be good....