Oops hit teh return key premiturely!
The question I was going on to ask is will I experience any issues using Contribute 3 to create connection keys and adminster sites, which users will update using newer versions of Contribute?
If they do not administer the website, then you can still continue creating connection keys and administer websites using your Contribute 3 version. And, they can update their web pages using Contribute CS5.
But if they administer the website using their Contribute CS5 version, then, you will not be able to administer the website, and create connection keys using your Contribute 3 version.
Hope this helps.