Hi,
Regarding your reply earlier:
I need authors have ability to add new entries in frontend, and registered users have ability to edit their profiles and avatars.
If I understand you correctly, you have 2 user group; authors and registered user. Authors user group have the permission to write but registered user do not have this permission.
What you can do here is, change the ACL for authors user group permission to write = yes but turn off permission for registered user group write = no. Here I have attached to you a file, please download it and put it here: /modules/mod_easyblogwelcome/tmpl/default.php .
Hope this helps.