Introduce yourself and your cats here, and then post questions in the appropriate forum section. Note that there is a Cat Health forum, and Cat Behavior Program, and several others. It you message doesn't end up in the right forum, it will probably be moved to the correct forum by the site managers.
we're so happy to get the chance to welcome you and your kitty to TCS. I'm sure you'll enjoy your stay with us - we're one great big family and you'll find loads of friends here. If I can help at all while you're finding your way around TCS just click on my username and send me a Personal Message - I'll do what I can to answer your questions.
About answering specific questions - find the part of the forum that seems to be the most appropriate and post away in there. There will be plenty of knowledgeable people eager to help or point you in the right direction if they can.