If you read the other thread mate a few places near this one, i went into greater detail, but i used 1001 machine 3-in-1 carpet cleaner on my seats and it worked the nuts....
Its usually in a yellow bottle with blue lid, around £6-00 a bottle, but i found a whole load of it in some pound shops, with a year till the out of date stamp, so bought 10 bottles and tried it on everything i could, brought the interior up like new and even the dog!!!!!

Hope this helps...Regards edd.