hi, i want a make a slipstreaming cd with win xp pro and sp2. my problem is the burning software. i am using nero express, and i have problems reading the image file..it is only has the option t choose between floppy or other externan device, i want to read from file..is it possible? any suggestions to burn in an other way or software..?

You could always write the image to a floppy..

Or use a virtual floppy drive like this: http://chitchat.at.infoseek.co.jp/vmware/vfd.html

if i want to boot from the created cd, i have to insert the floppy..?

No.

Nero Express wants to read the boot image from the floppy. Once you have burned the CD you can eat the floppy or make christmas decorations out of it - you don't need the floppy again.