I'm the owner of a 7130v (vodafone Greece) BB with 4.1.0.351 OS and I'm not sure how to connect my BB to my pc

I've installed 4.2.2.14 desktop manager, connected the usb cable to my BB .... vista tray notification reports that the driver installation was successful ... I run the desktop manager ... says "connected" and is giving me a PIN number but when I open the roxio media manager, in the "my devices" tab, there is nothing... no device is showing ... and I'm not getting any removable storage volume in my explorer either

am I doing something wrong? does this mean that my device doesn't support media exchange with pc?