It is recommended that you update to PSoC Creator v1.0 Production.
This version can be found at the following link http://www.cypress.com/?id=2494
The latest version of UART Component available is version 2.0.
So you can update the UART component to this latest version from v1.2 and give it a try.
PutChar() and PrintString() are Blocking Statements and hence doesn't require any delay to be used.