I doubt there will be an ASP version as WebAssist has announced that going forward, it is moving solely to the PHP platform.
As far as submitting to Apache from the form, in theory, the spry validation and any javascript validation should be ok... the problem will come with the server validations. If you don't have any server validations (that are in PHP - you could of course switch them to ASP), my guess is that you could get it to work, although I am not 100% sure on this.
Cheers,
Brian