No it seems that everything is correct in the subscriptions script. My guess would be a problem with the syntex of the cron job.
I'm not 100% sure, but it's my understanding that not all hosts allow PHP cron jobs (which is why they still distribute the Perl version - even though the perl version has been buggy).
You can test he subscriptions script by opening it in your browser.
http://www.yourdomain.com/threads/cron/php/subscriptions.phpIf it runs correctly, you'll end with a totally blank screen.
If that works... the the trouble would be with the cron job. I'd check with your host to make sure they allow it and that you've got it setup correctly.
Hope that helps.
