i have problem with blog on my www

http://przystanekempatia.pl/blog-2/ <- link.

(1) if I click on a link of the author this brings me to a page with different authors. I would expect that will be there only one author articles.

(2) there is no way I could edit page http://przystanekempatia.pl/author/aswiderska/ by upforn and an other authors.

please help.

kinde regares,

?ukasz