iFrame help

[Joey_M]

I used to have a block on my old 3.4 site which embedded my sites chatroom inside, I can't see to manage to get the block working and my attempts to re-make a new one is failing.

I'm hoping somewhere may know a way I can do this?

This is the link I am trying to embed.
 

http://prideofnottingham.co.uk/cometchat/modules/chatrooms/index.php?id=1

I have created the page but I can't get the HTML block to work with the code.

This is the code I used previously.
 

<!-- isHtml:1 --><!-- isHtml:1 --><div style="text-align:center"><iframe src="http://prideofnottingham.co.uk/community/cometchat/modules/chatrooms/index.php?basedata=null&popoutmode=1" width="800" height="600">
</iframe></div>

I replaced the old SRC with the new location, yet it doesn't display.

Here's the link - http://prideofnottingham.co.uk/fans/match_chat/

Does anyone know how I can get this working? PS. Is it possible to make the width auto size? (so it fills the space available)