Hello, I am hoping someone can help me.   I have a website that uses IPB forums Software and In the top right corner there is a follow us on twitter button and I need to change the twitter link but for the life of me I do not know where to go to change this .  My website is www.christianityboard.com

What theme are you using? This should be an option in your theme settings. Go to ACP -> Customization -> Themes -> Edit theme and find the appropriate tab on that. If it's not there, you should probably contact your theme vendor. You may need to have them tell you where you can find that in the code, and go manually change it there.