First I guess you don't post in the good section of the forum. Here it's for HowTos and Tutorials, this is not the subject of your post. Maybe an admin can move it in the right place.
Plus, If you look for a little you will find several places in this forum where it has already been answered to this question.
I'm sorry of this response, I would not be/seem too harsh but repeat the same things 300 times in the forum because people do not take 5 minutes to do some research is not a good thing, either for the forum or for visitors and posters.
Here is after a research of 10 seconds I found: http://linuxmint.com/forum/viewtopic.php?f=46&t=18422&start=0&st=0&sk=t&sd=a&hilit=mount+partition
Look at Husse posts. This topic is from Sat Nov 01, 2008!
Just as you use Mint Fluxbox, substitute mousepad to gedit.
P.S= My english is not absolutely perfect too...
K.I.S.S. ===> "Keep It Simple, Stupid"
"Simplicity is the ultimate sophistication." (Leonardo da Vinci)
"Everything should be made as simple as possible, but no simpler." (Albert Einstein)