[Closed] OSM maps

Should be easy.
Can someone just post a link to the how to do it page or what ever they call it. I see nothing that tells me how it works.
I tried asking on the OSM forum but all I got were condescending remarks.

Failing that how the hell do I select a map?
All I seem to be able to do on the PC is zoom in and out. There is an export button that tells me the limits of the map but I don't see the matching numbers on the map itself.
On the phone, which is where it wants to go all I get is the map which doesn't even want to zoom as far. No export button or anything.
Orux already on the phone.