I am still a newbie so I may be wrong but I think this is how you do it.
In a terminal window type-
mount /dev/hdb1 /fat32
creates a top level folder called fat32
is the command to mount something :=)
is the location of the thing to be mounted. Replace hdb1 with the location of your fat32 partition.
is where you want it to show up in your file tree. The folder you created earlier.
You will have some permission troubles to solve and you will probably want the partition to auto mount each time you start Fedora. Those things are explained in this web page here -
"How to access a windows hard drive in Fedora" http://foolish.fedorausers.org/mount/