RIS and other boot disks

Hello all,
I have used riprep to save an image to my RIS server, but i have issues with the intel pro 10/100 ve cards which are not accepted by the RIS boot floppy. I have been able to boot through this cards using another boot floppy, and I have access to all my network shares, even the remoteinstall share. My question therefore is, how can install a RIS (riprep saved) image having booted thru a different TCP/IP boot disk.
Thank you.