I am looking for maps for Heroes III.

Everything opens fine for me.
You can search the site for "heroes of might and magic3" and find "Heroes of Might and Magic 3 | Maps (>10000) + HD Mod 2.98f" in the results.

I am amazed by such "fans" who don't know that it is only available from Ukrainian IP addresses. How many times has this already been said and discussed... and still, from time to time, someone brings it up.

Added 22 minutes later
I'm not one of those fans, though.