Unable to install any application from the installer.

try full flashing software

Hi, Here are the steps to solve your problem:
1. Download the desired java game in your PC. 2. Extract the downloaded game in your PC. 3. Connect your E63 to your PC via usb and run the 'Nokia PC Suite' software and transfer the extracted java game in your phone. 4. Click on the extracted 'nokia application installer file' in your phone. A wizard will appear asking you to complete the installation on. Just finish the instalation and its ok! :)
OR 1. Do steps 1 to 3 above but the only difference is you go to 'Data Storage Mode'
2. Copy the extracted 'application installer file in to some folder of you memory card.
3. Disconnect it from your PC 4. Go to file manager, Find the copied java game and click it.
5. Just finish the instalation and its ok! :)
Hope this helps! -jayps

I would restore the iphone back to factory settings and test to make sure everything works as it should. Then proceed to use the following:
http://blackra1n.com/
or
http://www.ziphone.us/2009/02/ziphone-by-zibri-iphone-news-unlock.html

I hope this helps and good luck. Please vote appropriately and leave a message.

Installer app is only available for jailbroken iPhone please google "iPhone Jailbreak" for more info.

It is difficult for me to completely understand your problem. What version of firmware are you running? Do you have multi-pages enabled with Summerboard? If not, new apps you install will push other apps (like installer.app) off your main page.

To fix this quickly, you will need to ssh into your phone to change the plist data and move installer.app to the front of your list. Then, install summerboard to get multi pages enabled.

If you don't know what ssh is, then you'll need to:
restore your phone completely to 1.1.3 using itunes
download ziphone from http://www.ziphone.org/
run ziphone -j

now you'll be fixed.

Well, I think that if you install the aplication once again bye safari, your problem would be solved, just enter: "jailbreakme.com" on safari, and perform the installation.

Saludos :)

We have 2 problems :
1-Application
!SisRegistryServer
Reason Code
ucmp
Reason number
0
=====
2-Application
Application installer
Reason Code
KERN-EXEC 
Reason number
3