After many tries i was ready to try to download the old version of itunes that was working, so i did it from:
http://www.oldversion.com/program.php?n=itunes
, but it did not open because it say that the library was created by a newer version, urrr!!! ... so i deleted the library and i though to get a new one from the resent old version downloaded, and that exactly what happed , but then i needed the old list of my podcasts so i uninstall the old version and install the new one and got the list on paper , after that, i uninstall and install again and perfect connection to the store but the library was clean , so i went to the Recycle bin and try to Restore the old library and it ask me if i wanted to replace this library with the new one so i did and now works like before all this nightmare. I really don't know what is the problem or the solution but it is working now, ...and it wasn't God, i am atheist! jaja good luck.