Hey yall I am new to BB but i have found that in order for the pocket mac to work properly make sure the software is running before you plug in the Pearl. it works fine then I use it at least 2 times a week. To add music or other things make sure that you enable the mass storage option when you plug the phone into your computer. then it shows up just like a jump drive. then just drag and drop the files into the coresponding folders ie: music movies ringtones ect.
To install software from pocketmac go to utilities and select install software to device, the select the app file you downloaded. it works great. I put dopewars and more on mine with it.
hope this helps.