Ok, in my reunion with my project bosses they said me just called form editpage to other editpage2 and this to editpage3, if possible. I'll try and if not, back to llok the specialuserlogin.
By the way, finally I know the form "not save now" problem: I made some modifications i article.php also, but I moved them to article.php to better maintenance. However, that made that laodcontent loaded the original text and didn't change it. So, I'll have to made not only editpage.php-->edit2.php-->edit3.php, but also article.php-->article2-->article3, I think. Oh well. However, as the form problem seems solved, probably I'll can pass the parameters as hidden atributes in the form. I suppose the main problem will be sure it calls correctly.
Thanks!
Jordi