Well, I think the following is best, I thought about it like past 3 months^^
2006.01 - 2006.52
I could write a script to rename all 2005 motw to 2005.XX, but I don't know if it is even needed. Most important is that they can still be ranked correctly, the newest motw always has to be on top.
It started as an integer, I will have to transfer it to some double, or maybe even a String. Not sure if the old values will be saved if I do this though..
Thats why I would prefer if it stayed a number, not a String of characters.
can't you create a map pack of all the motw, put a textfile in it that says when each map was motw, then clear all maps of their motw status and start anew with week 1?