I do still update it, any time a bug is reported I fix it ASAP. There is no official place to see which scripts are still maintained. That being said a good way to tell is just to check and see if the scripter seems active. If you buy a script and it doesn't work as intended the scripter has 1 week from the time you notify them of the problem to fix it or you can receive a refund and the scripter can be punished.
Sure, you have one now.