Just updated, and it broke my multi page form.

I see 3 jQuery errors on your page:

Timestamp: 8/30/2012 9:21:49 PM
Error: ReferenceError: jQuery is not defined
Source File: http://goldealers.co.uk/precious-metals-calculator/#gf_9
Line: 54

Timestamp: 8/30/2012 9:21:49 PM
Error: ReferenceError: jQuery is not defined
Source File: http://goldealers.co.uk/precious-metals-calculator/#gf_9
Line: 68

Timestamp: 8/30/2012 9:21:49 PM
Error: ReferenceError: jQuery is not defined
Source File: http://goldealers.co.uk/precious-metals-calculator/#gf_9
Line: 82

However, I was able to advance to page 2 and page 3 without a problem. I did get 3 more errors on page 3 of the form, just different line numbers.

You will need to determine why jQuery is not defined.

It looks like you probably have a theme or plugin conflict. You can start troubleshooting by following these instructions http://rkt.gs/testing

However, I see a problem in the output from the gravityforms shortcode. There is extra HTML markup being added. See this:

[html]
<div class='gform_page_footer left_label'><input type='image' src='http://goldealers.co.uk/media/2012/08/Back.png' id='gform_previous_button_9' class='gform_image_button' alt='Previous Page' tabindex='57' /> <input type='image' src='http://goldealers.co.uk/media/2012/08/Submit.png' id='gform_submit_button_9' class='gform_image_button' alt='Submit' tabindex='58' /><input type='hidden' name='gform_ajax' value='form_id=9&title=&description=' /><br />
            <input type='hidden' class='gform_hidden' name='is_submit_9' value='1' /><br />
            <input type='hidden' class='gform_hidden' name='gform_submit' value='9' /><br />
            <input type='hidden' class='gform_hidden' name='gform_unique_id' value='5040aa215de43' /><br />
            <input type='hidden' class='gform_hidden' name='state_9' value='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' /><br />
            <input type='hidden' class='gform_hidden' name='gform_target_page_number_9' id='gform_target_page_number_9' value='2' /><br />
            <input type='hidden' class='gform_hidden' name='gform_source_page_number_9' id='gform_source_page_number_9' value='1' /><br />
            <input type='hidden' name='gform_field_values' value='' /></p></div>
</p></div>
</div></form>
</p></div>

There should be no
or < p > tags in the Gravity Forms output. Something on your site is adding that. It looks like your theme has the [raw] shortcode:

http://themes.mysitemyway.com/myriad/shortcodes/all-shortcodes/

The addition of that shortcode to a theme forces all other shortcodes to be processed differently. If you don't use the [raw] shortcode at all, you should remove it from the theme. However, a quick work around would be to wrap the gravityforms shortcode in the raw shorcode, like this:

[php]
[raw][gravityform id="9" name="Your Form Name" title="false" description="false" ajax="true:][/raw]

That should work around the problem for now.

You can read more about the [raw] shortcode here:
http://www.gravityhelp.com/forums/tags/raw