okay so i have been trying to download themes through .zip files because i dont have the data package anymore. I unzip the files and extract the .alx file. then when i go to application loader on desktop manager it says no applications were found. i read that i have to download the OS that I have on my phone onto my computer? I'm not sure how to do this or where to find out what type of OS i have on my blackberry? I have the 8310 curve from AT&T. Thanks a lot