Hi. I am new to Blackberry and this website. I have the curve 8330 running 4.3.0.124 OS on the Alltel network. I have fallen in love with this device. I am really wanting the Today Plus theme. I downloaded from BPlay and I receive a message "unable to retrieve file" everytime I try to install. Is that maybe because I am not on the latest OS? Are these themes OS and BB model specific? Should I upgrade to the new OS and then maybe it will work? The tech support there is good fro one reply a day so I have been messing with this for 2 weeks. How do I now if I should upgrade my OS? I would be grateful for any help. Thanks.:confused: