Hi Gary,
bear with me, having an all round bad day. As stated above I have 7ecaf8d4-8aa0-4a42-8c15-cd1af0f69bb7 which is the original Altenburg Wildau route. Also on the same drive there is 3045addc-5d92-4b7d-a2fe6a759dad which is the update to V3. Incidentally the same one that is downloaded using the link from skiddaw above.
Marks link leads to the new download on railsim.de, and here is where confusion arises.
On opening Marks link, you are given two options. "Download or goto entry". Using download you receive Part1 only, which among other things has a content folder with route 3045addc-5d92-4b7d-a2fe6a759dad. Going to "entry" is where you can then download Parts 1&2, which is what I've done.
So to summarise dont know whether I have version 3 or version 3.12 installed. Nor how do I get access to whatever is in Part 2.
Regards JohnT