During play back, TP throws an error for the above line of code-> Failed to find attach name: "ClassName=ThunderRT6TextBox Index=29". I am sure that the Index of EditBox now is 29. What could be wrong ?
And if that doesn't work use the Indentify tool to check what Test Partner thinks the control is. I've had instances where using Aliasing has changed the percieved indexes of controls e.g. GUIObject @ index 32 has become EditBox @ index 3.