Well, your phone was originally launched with Windows Mobile 6.1. If you keep running WM, you are probably aware that they have stopped developing for that platform. I happen to have their latest released version, back in '09, uploaded to 4shared. It is a cab file. You can download it from
this location. Copy it anywhere you want on your phone and tap over it to install.Otherwise, i.e. if you decided to flash Android to your phone, launch the Android Market application on your phone, search for 'Skype', and follow the prompts.Hope it works for you.Anyway, please, let me know if you need further informations.Regards,Carlos