it should be easy
 

When I sign in I can't seem to find where to enter a new post. Do I have to go to the new member area each time

Welcome to the forum, one of he mods will be along soon to point you in the right direction.

It is easy when you know how!

When you sign on to the forum you will see a page with the new members section at the top, if you scroll down the page you will come to the various model tech sections including the S Type section, here is a direct link S-Type / S type R Supercharged V8 - Jaguar Forums - Jaguar Enthusiasts Forum
I've also moved your other post there.

Hi there, in answer to your question, no you don't

Once on the homepage, simply scroll down to whatever section you'd like to enter, off topic perhaps, maybe one of the regional sections, or one of the model sections?

Click on it and that section will open for you.

Once inside, you can view all the threads there, to view any particular thread simply click on it.

Should you wish to start your own new thread, look for the "post new thread" button on the left hand side, click on it and make your post then hit submit