Automatically Joining channels:
On the buddy list, select Buddies->Add Chat. Use this dialog to add the chat to your buddy list. Once the chat appears in your list, right-click on it and select Auto-Join. The channel will auto-join whenever you sign onto your IRC account.
Setting Real Name:
Go to the Accounts menu. Select your IRC account and click Edit Account. Click the Advanced tab. Enter a name in the Real Name field.