Problems with Version Upgrade

[metoh]

Hi. I just bought a domain and installed a new SMF forum.

I tried to to a forum version upgrade to 1.07 from 1.05 in the admin panel, but it gave me an error:

I followed the steps on the package information:

If you currently have installed 1.0.5, 1.0.6 or 1.1 RC2, you can do either of the following to upgrade:
* Use the package manager in your administration center - one click, and you're done.

One click and this error message pops out.


Not Acceptable
An appropriate representation of the requested resource /discuss/index.php could not be found on this server.

Apache/1.3.36 Server Port 80

Anyone?