Symbian Console Exe auto run after isntalling

I have written a console exe which I need to start just after installing. This is very easy to do as they say . Just put FR,RI in the .pkg after the application name:
"C:\Symbian\9.2\S60_3rd_FP1\epoc32\release\gcce\urel\consoleapp.exe"-"!:\sys\bin\consoleapp.exe",FR,RI

But even after doing this the application was not working in the device. After getting screwed for several hours and trying some unearthly things, I resorted to a friend for help. He said that self signing wont work. I have to go to make it Symbian Signed. Bummer...