Update Notify plugin

https://www.gudlyf.com/index.php?p=357 does not mention WP v1.5 support.

https://watershedstudio.com/portfolio/software/wp-email-notification.html is another option.

The top one is the one I want, but it seems not to be working with wp 1.5

It does not mention WP v1.5 support.

It works in 1.5 but then it screws up some pages from working. the pages go blank and you cant get to them. the wp-login.php page doesn’t work properly either when plugin is on.

Yes, but the plugin does not mention WP v1.5 support. That means that some things may not work correctly. Have you contacted the plugin developer? There’s nothing we can do for you here.