Just to let you know, the subscription plugin that I was using has finally been updated so that it’s compatible with the software that’s running the website. This means: subscriptions work again. If you are not a registered user, you can’t access the subscription option. For registered users, log in and either follow the Subscribe link in the top menu or go into your user profile and adjust the setting there.
Also, the security issue regarding anti-virus malware warnings has been dealt with. Some irritating hacker was kind enough to insert some nasty code into a post, it just took me a while to figure out where the problem was and take care of it. That said, it’s all clear now.