Can a forum member please let me know where I could find traffic file(s) for the FSX version of Lakenheath?

Download the MAIW RAF Lakenheath package for FS9 and convert the traffic file to FSX format.

The included NBAI F-15 works fine in FSX, or you can swap it for the FSX native JYAI F-15.

To Greg: Thanks for your reply. How do I convert the traffic file to FSX format?

The easiest way is to use AIFP. One of its tools is to find FS9 traffic files and another is to convert them.

Thanks Firebird. AIFP will be a new tool to me.

You will love it. You will also wonder why you didn't get it earlier.