When asking for technical help at the very least let us know the version of firmware you are running.Cliff's Calibration (Mapping) Guide is a MUST READ: http://www.vemssupport.com/forum/index.php/topic,97.0.html
I work for Symbian, who do the N95 OS.It's something I've been chatting to rob about.Perhaps not megatune, but a reduced tuning and configuration app.