Format issue after upgrade to 1.5.8

Hi there,

Since updating to version 1.5.8 (using Joomla 1.5) when attempting to add or edit existing products, the formatting of the page has changed.

Previously the Joomla toolbar remained at the top (in order to update, save etc) however this has now been removed and I am unable to Save or Update the product listing.

I have attached a screenshot of the page as it is now. The fonts and look of the page have also changed now and I am unable to add or edit any of my products

Your help is appreciated!

Thanks
Shane