i have a samsung f490 & i need to install chatting software in it. I'm facing the following problems:

1. where i can get chatting software? (yahoo, skype or fringe)
2. How to install it into my phone?

i've downloaded e-buddy, yahoo jar files. but cant understand how to install them.

can anyone help me? i badly need this.

See More: installing zava software in samsung f490