1) I have filled the content section (title, alias, section, category) in a template but when I select it from the editor nothing is overrided.

2) I have set the limit to a section/category. Then I have create a new article, I have set the right section and category and I have pull down the template list but I have not found my template.

3) When I am editing a new article and I press the template button, the template override the article in a IE browser but nothing happens if I use mozilla (5.0)

Sorry for my english. I know, it is very bad.

I am working on a new version which should fix your problems.
Regarding 2) The section/category thing only works if these are selected when the page loads. Not after selecting stuff from the pulldown.
So if you select the section + category in the article list view, and then create a new article it should work.