I'm new to WP and was having trouble adding categories (I still am...I got the ajax permission error)..so I ended up changing my blog URL under admin > options > general options and now I can't get back into the admin panel (I get a cookies error). How can I change the URL back using FTP? I believe it's my only option since I can't access the admin area. I looked in the options_general.php file but didn't see anywhere to edit the html.
Any helpful suggestions would be greatly appreciated.