Surely the torrents are working for this?
That or try looking up baka-updates and check which subbers did Rozen Maiden and then try to enter their IRC channel to download it straight from them.
If that still fails, then try some direct download websites by googling them and then try looking for them slowly. Unfortunately for this option, most anons prefer to keep their sources to themselves in fear of getting delays and overcrowding.
Now, on to the interwebs!