Go to
www.tinypic.com click browse, select photo. under resize select message forum, click upload now. Enter antispam code, choose the message board code. Copy it, come back here and paste it directly into your message. The pic should be the correct size.
To make a signature pic,go to
www.tinypic.com click browse, select photo. under resize select thumbnail, click upload now. Enter antispam code, choose the thumbnail/message board code. Copy it, come back here, go to member preferences, select edit profile, you will see where it says signature, paste the the code in the box, click update. The picture will be the correct size.