I am trying using test parameters that we can pass using Settings->Parameters, but am unable to implement it. I am also unable to use Action paremeters. One additional thing what actualy is the difference between the two i.e. Test and Action Parameters.
Test and Action parameters only differ in the usage. Test parameters are used to supply arguments from outside the test (When you run QTP scripts with Test Director or other tools) while action parameters are used to give/recieve data to/from a action.
Let me know if you want any other details on this.