I am one of the owners of the repository of Koreader. It's a claim that mainly emphasizes that I have some knowledge of how Koreader might be used. As we're on a forum called mobileread one can also conclude that some kind of e-reader might have been on the horizon for some users. Let's assume it's happened on my horizon, too.
I've you've tested the files I've uploaded, you should have them working with both Koreader and Goldendict. If not, it's not due to the uploaded dictionary-snippet. (Clearly, that was not the data I was alluding, too.)
For installing and working with Stardict-tools, I would suggest Google. It's really much easier than converting a dictionary.