Can't install

Hi,

I'm having install problems with the trial version. I get this error message in Joomla admin:

Warning: copy(/home/website/public_html/test/administrator/components/com_sef/install.sef.php) [function.copy]: failed to open stream: Permission denied in /home/website/public_html/manage/administrator/components/com_installer/installer.class.php on line 360

Line 360 reads:

$path_info = pathinfo ($_file);

Thanks for you help

Do you have safe_mode on?
Can you install other components?

No, safe_mode is off. I'm able to install other components.

Then it's pretty strange. Have you tried installing it from directory?

I have, but I must be doing something wrong. Here's what I tried:

--ftped the unzipped folder to the components folder
--renamed it com_sefadvanced
--replaced the .htaccess file
--changed the permissions of install.sef.php to 666 (then 777)
--pointed the browser to:

myjoomladirectory/components/com_sefadvanced/install.sef.php

All I got was a blank screen. And nothing shows in administrator

Where did I go wrong?

That would not work.
Do this instead:

- Upload unzipped files to ./media/sef_advance/
- Go to Joomla components installer, Install from directory, and point it to:
/path/media/sef_advance/
- Click on "Install"