You got to kick the habit of downloading stuff randomly off the internet.
In linux you usually use the package manager, which is the one major reason for most people to use a distribution rather than building the system themselves.
To install stuff you go to:
System - Administration - Add/Remove Software.
In Fedora-9 the firefox-3 beta is already installed.
Do you specifically need any features of the latest Evolution release? Note that the version installed on fedora is merely a couple of months old.
If not, I would strongly recommend you use the one that comes with the distribution. Fedora is cutting-edge enough as it is.
... They ported nero to linux?
The one application nobody asked for!
Anyway - you downloaded the .deb file - that's the debian installer. Fedora is an rpm based distribution. (you need the .rpm file)
But I suggest you try gnomebaker, brasero or K3B. I would choose either of them over Nero any day.