hmm
1) the problem regarding mir.dat and mir.exe is this, if they are different, u can enter till the chara selecting part and after pressing start u will return in windows, if this is what happens to you then it might be that the renaming mir.dat part hasnt beed done well. please control that u havent got the hide complete extension activated, to do it look in Control Panel > Tool Menu > Folder Option > View > untick hide complete extensions. (sorry if it doesnt correspond but i got an italian operating system) after doing this recopy your mir.exe inside the Legend of mir folder and paste it into the mir200 folder, delete ur mir.dat file and rename the mir.exe file to mir.dat
2) the Not ready line of your m2server.exe is strange, i see that it charged everything, i dont understand what that lines refers to, probably its m2 v.1.2, i added u to msn messenger, maybe later on u can give me your m2server.exe so i can see what that is.