Re: Unable to write to File Gallery folder
If it was a low memory VPS and you had shell access, I would recommend disabling innodb. I have freed up a lot of ram by doing that, but on shared hosting that probably isn't an option.
Have you added "php_value memory_limit 128M" to your .htaccess?
Using phpmyadmin to optimize your tiki database might speed things up some.
Starting a new topic asking for help with low memory would probably get you some good suggestions.
Tom