Hi Gustavo,
As Sergey said, there is an application that ships with VFP 7.0 that is called an automated tester. The problem with it is that it doesn't support evaluating the controls on the form. So, a better description of it would be a GUI automater. Rational has a product called Visual Test which now supports MS Active Accessibility (Which VFP 7.0 is now compliant with). The problem with that is that their product does not use MSAA for discovering controls on the forms either. This leaves you with a ton of code to write manually.
So, the short answer is, you can automate your GUI's using the VFP 7.0 testing app that ships with the product. But, if you want to do "real" automated testing, there currently is not a tool on the market. (FoxRunner is due to release a new version in the near future which will support VFP GUI evaluation. Not sure when it is due to be released though.)
Hope this helps,
Marty Smith, CSQE