And the support received by this guys was superb, given that its a cheap extension.
They treated me quickly and are very concerned to resolve any slightest problem.
P.S. If you plan (like me) to include a module in the content instead of HTML use Module Plant. I have tried 4-5 (I am talking about the free alternatives) and this was the one that works most fine.
From my point of view, Dmitry is for Joomla maps what Nicholas from Akeeba is to Backup extensions
Thank you very much.
In next week I'll publish Zh GoogleMap Module, it is module. And you finally could include in contact page a map :D