hi,
i think the link from lynch should help you,
but still( as much as i know....)
login as root , and go to the Linuxconf
there you have a section for filesystems
select mounting other filesystems
select the partiton you want to mount,
before all this create a directory in the /mnt dir as dosC/dosb etc..
select the partition as fat32 type
and the mount point as the dir you created inthe /mnt dir
then click 'mount'
and save and activate changes
that should do it
bye
vij