Admin Panels -> white screens of death!

I had to upload my own PHP.ini file that my hosting sent me… and how would one restart one’s apache instance on shared hosting? (I do not hold out much hope for getting them to do it, they’re absolutely useless… I contacted them about cancelling my account 2 days ago and they still haven’t got back to me!!!)

Is there somewhere I can download a good PHP.ini file to use with WordPress and PHP 5? I’m looking through this one and I’m not sure it is all that good…

I’m hosting with crazy domains in australia (stupid mistake….)

But they are fine with custom php.ini files – they actually sent me one to try.
I had a look inside and I’m not too sure it’s set up the best for wordpress though….

Here’s the PHP.ini http://pastebin.com/1UGLt8rG

And this is just bizarre. I contacted my hosting about this problem, because it is definitely not a problem on my end. (I know, because another site I admin with WordPress is working fine).
I thought, well maybe I’ll try attempting to set this site up just like the other one that works. So after copying my plugins folder and exporting the MySQL databases of the 4 WP installs I had (one on the main domain, three on subdomains) I installed WP 2.9.2 with the Fantastico in my cPanel, and set it up exactly like the other site I have.
I took screenshots and sent them to my hosting.
Error Screenshots
The first shot is the Permalinks panel working on my other site (which is a completely different domain and hosting plan). The second shot is the permalinks panel straight after the install of 2.9.2 with fantastico, before I had even attempted to add any information like posts or pages. The third is the update to 3.0 screen (to prove to my host that this is not a memory issue). The fourth is the permalinks pane with the upgraded 3.0.
(I tried all of that without even bothering to add the PHP.ini)

After taking those shots, I imported the SQL file back into the new SQL database that had been created.

NOW I am trying to access my site… but somehow, all of the code in all of the PHP files in my WordPress install have been completely erased! Like the files are all still there, but they are empty!

Yes, I did update the WP config.

I actually did it with brand new databases and installed as if it was a brand new site, and then just dropped all the database tables and imported my old ones.

There must be a prob with the javascript code within the WP files somewhere, because other wise this would not be working on my other site…

OK.

The error that came up on the Firebug panel for the Permalinks page was
‘structure is null’
line 119 in options-permalink.php
the line is
119 structure.onfocus = function () {document.getElementById('custom_selection').checked = 'checked'; }