If you have Linux, mounting an ISO is a doddle if you know a little command line stuff:
- create a target mount point if you have to or use an existing one e.g. /mnt/cdrom
- as root, run mount -o loop -t iso9660 <iso file> <mount point>
- open the mount point and access the files
I don't remember what package system that the Asus eee machines use as standard, since I threw Ubuntu on my eee PC 1000 not long after I got it a year ago, but the "netbook" idea is to do everything over the network, for everything short of a clean OS installation.