You can expect a lot of the maps on this site to be updated asap as AlexNez has been kind enough to release this tool which can convert maps to the latest stable build of Spin Tires.
I am going to do my best to convert maps as quickly as possible. Be warned, in a few test conversions some object remained white. Not sure why but according to my code monkey this is a xml error which should be easy to fix. So whatever maps have white object please report so in a comment and it will be fixed at a later date. For now, if you want to convert maps yourself, here is the tool by AlexNez.