Folder lock encrypted locker not accepting password

Hello,

I am using Folder lock 7.1.7 and i have an Encrypted locker with over 45 gigs of movies music and pictures as well as some files and folders for my job. I'm not sure what happened but I closed the folder around 4 pm today and when i tried to get back on a few hours later my password didn't work anymore. I put in my serial key to unlock the master and then when i went to my locker which used the same password as my master it wouldn't take it. I have tried all four combinations that I use for my password but none work. PLEASE HELP!! I'm least concerned about the pictures and such...but the files for my job are the most important thing i need.

I am using windows 7 ultimate 64