how do you remove the page numbers in articles on 2.5

Hi Smartcar, and welcome to OSTraining. Glad you have you as part of our community!
:-D

Try going to: Go to Content > Article Manager > Options > Category > # Articles in Category and turn off

If that doesn't work, using Firebug, look for the class that displays the number in your article, find the class in your CSS file, and add this code to your template:

.PageCounterClass {
display:none;
}

WHERE PageCounterClass could be any class name depending on your template.

Let me know if the first part works first. :)