From menu at Application » Settings you can configure all the settings grouped by their functionality.
Details
In this area you define your name the way it will be displayed to other contacts and you have information about your credit. You can choose your avatar from the existing list or you can choose another one from your disk by pushing the Browse button.
Messengers
Here you can login in Alonia in other messengers lihe Yahoo, MSN, AIM or Google. Once you're loged in you can see all your contacts from that messenger and you can communicate easily from Alonia with them.
Ignore List
In this section you can configure your contact list with contacts that you want to ignore. All contacts from here won't appear anymore in your contact list, and you can't communicate with them anymore.