I'm trying to fix my MMS problem due to upgrading to 4.0 while my phone was jailbroken (I already fixed the Cellular Date problem). In one of the threads here theres a way to to fix it, I need to ~/library/application support/mobilesync/backup. I clicked on the Macintosh HD icon on my desktop > Library > application support then I can't Find "mobilesync" folder! Am I doing something wrong here?! I really want my MMS back..