Charyuop,
The makers of winmx closed down all peer caches, their website and they also stopped developing the program.
The people who made patches to still use the program are not connected at all to the company that made winmx.
They are users like you and me - just better at programming, so they were able to find a way to set up new peer caches and get us on the network again.
Still, the program belongs to the company, and nobody that I know of is able to change it, nor could they do it without breaking copyright laws.
That means there will be no changes whatsoever made to the original winmx program.
Let's just hope that some day someone may write a new, improved, client with all the features we want to connect us to out favorite network