Sorry. I wasnt implying we werent going to help you. I was stating that you cannot bump until 48 hours after first post. I was trying to state that you can google it.
If you have an unrelated question in the future, please create a new post. To answer your question, character limit and MMS size are set by the carrier. In order to change it you would have to edit a Carrier Bundle plist but I would advise against it as it violates the cellular contract.