Howdy c0zm1kfury and welcome to the forums!

assuming your command is launching your wow, and the only problem is that it is not 'maximizing'... then you have 2 possible causes:
1. you did not specify the region correctly
2. another window is launching your wow

to rule out #1... go to the maximizer editor. click on the region. check the exact spelling in the 'region name' field:


compare that to the name specified in the 'region' field in the command editor. in these pictures, they do not match and you should correct it (changing the command is easiest)




assuming these fields match... your left with #2.

if you are running vista... that is the source of all your problems (of course). using windows explorer... find wow.exe... right-click... properties.
check to see if something like 'xp service pack 2 compatibility mode' is enabled or not. flip it.

there is some other language compatibility applications that run a top window for every application.. you can disable it under properties as well.

end result is that is does work... you just have to figure out the difference

if you have any other questions or comments, please feel free to drop me a note.

good luck and let us know how it turns out