Only editors may edit and create pages. As an editor you are also not hindered by any IP-blocks. In addition, you may send email to other users.
To become an editor you must have a confirmed email-address, then you have to add the editor user rights to your account. You cannot add any other rights to your account, not can you remove editor rights from you account. You cannot give user rights to other accounts either.
If you need to upload files to the wiki, contact Koppadasao.