Missing add to cart button after changing servers

Hi,
I recently moved my zen cart to a new hosting package and followed the instructions in the tutorials section of the site. All went well...or so i thought!
I've just checked the product pages and there is no quantity, add to cart, attributes etc on the product page.
I have the description and thats it.

EDIT: I've just noticed when the page is loading i can see the items and as soon as the page is loaded (a second later) the items are gone. Any idea what is causing this?

I do have a 301 redirect from the old URL but everything is now hosted on the new hosting so i can see why this would affect things.

I can provide the URL of the site if you want to have a look at exactly what i mean.

I would obviously like to get this sorted as soon as i can because i cannot sell things at the moment!

Thanks

Sorry, cant edit my post anymore.
I also have this error in a debug file. Could this be part of the problem?

[30-Aug-2011 09:18:22] PHP Warning:  imagecolorsforindex() [<a href='function.imagecolorsforindex'>function.imagecolorsforindex</a>]: Color index -2147483648 out of range in /var/www/vhosts/purpleandblackalternative.co.uk/httpdocs/store/includes/classes/bmz_image_handler.class.php on line 434

I've got a few of these errors. I've tried looking in bmz_image_handler.class.php on line 434 and its:
$overlay_color = imagecolorsforindex($overlay, $c);
but i have no idea whats wrong!

I have now solved this.
It was a mistake i made adding a Google +1 button. I did this a month ago but for some reason was working for the last month!

All fixed now though :)

This can be deleted