I am runnning in RHEL5 (yes i know i am a noobe and well i want to learn from the best OS in the market

)
Ok when i want to install a new Virtual Os i complete everything on the Virtualization Manager,
1) New Virtual OS
2) name the OS
3) paravirtualized (The only one i can select)
4) Select source of install <- HEre i dont understand how to acomplish this.
For the reasons that it only asks for NFS, HTTP, FTP, and well i dont know how to configure either of them to load the dvd-iso i have on the rom.
The thing is that in Fedora the virtualization manager is diferent. Any help plz?