Won’t Recognize New Posts [Plugin: Post Notification]

I activated both Plugins, I subscribed with my email address to test it, I got the verification email OK and clicked on the link and I activated my subscription.

My problem is when I post a new entry the Post Notification does not recognize it (i.e. I go to Manage -> Post Notification -> Info and under the “Posts to be Notified” I do not see any of my new posts.

On this same screen there are two messages in pink background that I don’t understand:

PHP was compiled without iconv-libs. This might cause severe trouble using UTF-8 with special chars or umlauts.

This version of PHP does not support the function mb_check_encoding. You might get some trouble with non-ASCII chars in the subject.

Not sure if this is responsible or not, any help would be appreciated. my email is NAM6641@aol.com

Thanks.