Need a PC suite for this phone with the following features:
Connect to the Internet
Install Applications from PC
I have tried using Kies which came bundled with the phone, but it does not support Spica 2.1.
I am not sure why Samsung is playing with us.
Have you enabled USB Debugging?
This should let you edit phone details etc.
You can also, from your PC log into your GMail account and edit them there. (sync after from your phone to upload changes.)
If you mean connect your PC to the internet via your phone, search for thethering apps.
If you mean connect your phone to the internet, either do it via wifi or GPRS. GPRS will need you to set up your APN (Access Point Names) settings correctly?
Wireless and Networks
Access Point Names
Enter your details.
And as far as installing apps from your PC. You will need to download the SDK kit for Android to do that. (About 1gb)
Or do it the easy way.
Install Astro file manager*, enable Unknown Sources in Application settings, and copy the .apk file to your internal SD card.
From within Astro File Manager, browse to the APK file and install it.
*Other File managers are suitable too.