SQL 2005 Using variable with Dataflow task

Trying to use a variable inside the statement of a dataflow task.  Ive seen several examples involving using a script task or a variable to hold the statement.

When using the approach with a variable, I get errors

This is one example I was looking at

http://social.msdn.microsoft.com/Forums/en-US/sqlintegrationservices/thread/7d4dc272-625e-4f0a-8e0c-de5b3a50541c/

Anyone got a few links they can share that have some working examples?

I think I am going to try using a script task again.