I was reading EP 1 207 394 A2 filed in 2001, so I believe there could be a decision available. How can I find it?
I assume by "a decision" you are asking if it has reached a final disposition. It has resulted in a patent.
If you go to that document in ESPACENET you will see an "also published as" box. In it is a link to a publication with the same number but followed by B1. That designation is for an issued patent. If you follow that link you get to the issued patent.
In the upper left see "Date of publication and mention of grant of patent"