You should investigate writing queries a little more. Here is a link to get you started:
http://www.sql-tutorial.net/
In the meantime, you should use a basic select query that returns the specific row and column containing the varchar and return that value as a string. The literal should be able to take that string as its Text property. You should not need to do any formatting to accomplish this.
Forget about using a dataset in this situation unless you have a list of freetextboxes to populate. If this is the case then you will want to investigate the sqldatareader a little more as you will need to populate a dataset (or class list) in that instance.
I hope that helps.
Mark