To connect Tweets to InfoCaster, you need to establish a data source through the ODBC Wizard. Using the Title Quick Editor, select the External Data Source option. Click Setup and select Create new RSS/XML source as shown below: 
The Data Source Wizard will now present the entire XML tree.
Work down through the tree to the first entry “Tweet” and select an item such as ‘Text’ or ‘AvatarURL’. As you select elements from the tree they should appear in the grid at the bottom.