You can check the .config file in /usr/src/linux/ , you can run 'make menuconfig' to see if that options is enabled (look somewhere under device options, don't have time now to check) but the easiest thing to do is to simple run
mount -o loop /path.iso /mnt/cdrom
If /mnt/cdrom is the place where you mount cdrom. i am not sure, but thats somwhere else by mandrake. try to check /etc/fstab ( you can type 'vi /etc/fstab') and see if you can figure it out where is your cd to be mounted.
you don't need to know where is your cd to be mounted. simply create a new folder 'mkdir /mnt/images' or something like that, and mount it there.
if that works you can access your iso image simply by typing 'cd /mnt/cdrom' (or /mnt/images). if you install a game or something like that, you can mount mount other image over the first one. don't forteg to unmount all of them when you are finished.