OK... let's try last once.....
I read very manuals for one year ago, when I suscribe to DSL service. These manuals were to config my router and how it is works. After more lost hours reading and headhaches, I understood (and I think I've not wrong) that the NAT (NAPT) only accept inbound request for internet to the external IP, the test to know that is to load a webserver in my machine, I use IE

and when I put the IP of localhost no problem XDD is in which I stand. But if I proof with external IP (router public, not LAN) the IE is showing message Web page not found. And this is real!!!!
Summary: perhaps I don't explain well (sorry for my poor english) but perhaps nobody, has the same problem and try to fix it. For that I suppose that only people with the NAPT or know how works it, can respond me in this simple problem.
I'm still thinking that I must to change some in webpost code (like now), but someone can send me any other idea.
Thanks a everyone, specially to Gryphon and [SOB]Grunt.
sorry for my english. Muadib