Disable your Plugins and hooks and enable them one by one until you narrow down the problem. It will probably be a Plugin with the Hook Location newthread_***.
As for you editor, you can use Notepad (it has a Goto Line option) or download a free PHP Editor, there are loads, notepad++, PHP Designer, to name but a few; just to a google search for them)
Thank you for the help bud. I did narrow it down going 1 at a time. Couldnt for the life of me find the error...so I rebuilt the whole thing and its working great now.