An option for you is to create a Flash movie that performs a
text input, whose value you assign to a variable in ActionScript.
Import that movie into Captivate. Then, insert another Flash movie
that reads/displays/processes that variable. It's a little tricky,
because you have the Flash movie that reads the variable accesses
something like 4x roots levels in the ActionScript to get to the
proper level. Not my area of expertise, but that's my suggestion :)
BTW: I'm an Authorware developer too (since version
3).