It may take several hours, until your DNS-servers will "know" about that.
So expect, that you might encounter download-problems.
You also might not encounter any problems, as the old server still is online until february.
You already can browse the new mirror using this link:
http://puppyfiles.org/dotpupsde/dotpups
http://puppyfiles.org/dotpupsde/files
http://puppyfiles.org/dotpupsde/pics
It should be identical to dotpups.de , only 4 to 8 files might miss, I will add them later.
If you encounter any broken files (checksum error when installing a dotpup), please post it to this thread.
Next will be htb65.de, that is another 3 GB or so
Mark