You will need PC access to do the desktop upgrade. Check your device first off to see if the OS is truly shipped with OS 184.108.40.206, if so, upgrade to .75. (look at options > about).
I would do the upgrade first, users say it really makes a difference.
PocketMac should be in the disk, but I would advise you download the latest version: https://www.blackberry.com/Downloads...93E4F3BB068C22