looking for a replacement bladder for a signature 2000 tank
Please see this thread from 2010. It may point you in the right direction toward your next step.http://www.plumbingforums.com/forum/f10/signature-2000-tank-568/
Yeah just get a new tank. Tanks with replaceable bladders means the bladder will need replacing, usually on a regular basis. Get one without replaceable bladder.