Please do not hijack old threads. Especially since your question is almost totally unrelated to the original question - except for the fact that both question are related to mind maps.
Finally, I do not think that your question is one that can be answered because it does in no way explain what your actual problem is, i.e. why you are not able to create a mind map yourself. After all, a mind map may and has to be created like any other diagram in yEd - simply because yEd has no special support for mind maps.