You're skins and setups are not lost, they are still there. You have to rename the setups though, in order to work with the patch Y naming convention.
So all you have to do is purchase S1 or S2, the former which sets you back the ridiculously cheap amount of $23.81.
That's like estimated 5 meals at McD, a few miles worth of gas, a months bus tickets or a night drinking with friends.