I have installed qtp 12.53 and 30 days trail is completed still I need to use it is there any possibility

I have installed uft 12.53 version 30 days trail also completed but still I need to use qtp/uft for my project, I have tried changing my system date but it did not work, can any one help me . (Or) Is there any online tool we can practice vb scripting.

Thanks In Advance