Ok im rather clueless at the moment i have all current Gen2 ready for converting to xnb.
Using XNA Formatter everything goes well but this will require converting one at a time.
So i was searching for a easier way and found u can just add these to a new xna project and compile it and all the files will be converted to xnb format.
However when i try to load these compiled .xnb files into the game it instantly crashes when i try to load up the modified pokemon.
Using the converted files from XNA formatter it works perfect so does the tool use a diffrent setting or something?
I also tried and follow nilllzz his explanation on moddb and those are the exact steps i followed.
I don't have a better way to do this:
Edit the png in paint/whatever.
Then, open VS (with XNA) and press Ctrl+N
Click on c# section, select XNA game studio
select windows game
click ok
wait until it's complete (you will see some code files, ignore them)
press ctrl + R (should open the solution explorer)
Search for a file that says "nameofyourproject (Content)"
Rightclick it, select add > existing file
select your .png file > OK
It should be added to the solution explorer
Hit F5 (or click the little green arrow on top of Visual studio)
An empty window should open after some time (with blue background)
close it.
Navigate to (Yourdocuments)>Visual Studio 2010/2012> Projects>YourProject>YourProject>bin>debug>Content
Your .xnb file should be there.
YAY
Any clue why this happens am using XNA 4.0 do i need to change some settings around?