he has already fixed his mesh...it was posted over on mts2 ..i think in the help thread refering to the messed up mesh...also i have this blue blinky stuff with louise ears but only for those made before the pets ep..(or rather those already in teh game b4 the ep was installed) but ive heard you can fix this by removing the blue blinking item in te mirror...save the game with it off then go back into the game and put the ears back on and the next time you save it should be saving the proper info....i havent done this yet since i havent played those characters since i learned about this tip...but i have found that they work if you make a character after the pets ep was installed with those ears....just incase anyone has those ears and its the same for the satyr horns from here as well (at least for me) i dont use many others accessories so i cant say about them srry
ps ill try to find link to where he posted the updates mesh
ah found the post
http://www.modthesims2.com/showthread.php?t=202762 post #14 has the download