Hi Old Steel
Your right there, it is the brand thats the issue.
<item>
11 <title><![CDATA[1000k Volt Rechargeable Stun Gun]]></title>
12 <link><![CDATA[http://www.supremedefense.com/1000k-volt-rechargeable-stun-gun.html]]></link>
13 <description><![CDATA[Worlds STRONGEST mini stun gun. 1,000,000 volts! Highest voltage stun gun available! Rechargeable.]]></description>
14 <g:image_link><![CDATA[http://www.supremedefense.com/components/com_virtuemart/shop_image/product/7f129ccc5b0e25e5e7a6ea1844d73420.jpg]]></g:image_link>
15 <g:mpn>SF1000R</g:mpn>
16 <g:brand><![CDATA[]]></g:brand>
17 <g:id>45</g:id>
18 <g:currency>USD</g:currency>
19 <g
rice>79.16</g
rice>
20 <g
roduct_type><![CDATA[Mini Stun Guns]]></g
roduct_type>
21 <g:condition>New</g:condition></item>
Dam smiley faces lol
Ive coloured the first line 16 red, and then all the other errors you note above is the Brand as well that i can see. For the moment, you could add the brand in manually and then upload it to Google base manually.
Find and replace
<g:brand><![CDATA[]]></g:brand>
with
<g:brand><![CDATA[]]>supremedefense</g:brand>
You can use
notepad2 for this
All the best
Ian