Mini Cellular Respiration Lab I Cant Install My Opera Mini 4.2.. Using My K320i Sony Ericson Phone?

I cant install my opera mini 4.2.. using my k320i sony ericson phone? - mini cellular respiration lab

I downloaded the Opera Mini 4.2 on my phone .. And if I am ready to install the application, he said: "No connection could make to the server, try again, or (like the Opera Mini Web site) .. .. I PDB open GPRS and instant messaging with my SIM Sun Cellular .. please help