The EA will will always appear grey as it is a .ex4 (compiled) and not a .MQL4 (source).
If you are reporting that the updated version is working and publishing, just check that newly closed trades (i.e. post the Build 600 update) are actually appearing. My Experts tab is stating that statements are being uploaded successfully and on the MyFxBookpage it also says updated x mins ago, but none of the new trades are there - just the old pre-build 600 ones.
I used the link that was posted in this thread for the new installer which still resulted in both a .ex4 & .dll file being installed in the old locations and not a combined single file as CrazyTrader states above. I then had to copy them to the new \Experts and \Libraries folders.
CrazyTrader - do you have a completely new (fresh) build 600 install as perhaps the installer is looking to see if the old \experts file structure exists and is doing things differently depending on dirs it finds.
I'm sure the 'raw' new EA (without DLL - if that is true) will be availbale to copy from here soon outside of the installer and I can try pasting that in the correct new directory (use actual MT4 menu option 'Open Data Folder' to place them - if you try to put them in the MQL4\Experts or MQL4\Libraries directory directly it will not pick them up. Also note the new capitalisation of the directory names.
All the best,