It should install into the version you used last prior to installing the .cdp file.
If it doesn't, my Trainz Protocol Changer tool, available on my tutorial site, can help, or you can manually change the file associations using Control Panel.
A good tip is to save the CDP and not run it, then you can download it into which ever content manager you want from the download file. But if you now have the item in the wrong Content manager save the item to cdp, noting which file you are putting it in. then download from there into the correct content manager. It's worth having a special file(s) where you can keep your CDPs.
Hi, Had a look round for some of the Kuids for the Czech trams couldn't find any of them. as for those Russian sites it appears they are Forums with people asking for the same Kuids.