Free extensions for Joomla!

Hi,
Superb component and the fact it is free is amazing - many thanks for making all fo our lives so much easier!

I do, however, have a slight problem.

In my Google webmaster tools I'm getting te following error:

Invalid tag value
This XML tag has an invalid value. Please fix it and resubmit

Parent tag: url
Tag: priority
Value: -1
Problem detected on: Jan 22, 2010

I'm using Joomla 1.5.15, Xmap 1.2.6 and SEF Advance. Google only indexes 122 out of 737.

My site map is at http://www.therealdr.com/index.php?option=com_xmap&sitemap=1&view=xml

Any help would be most appreciated.

Many thanks,

Pete

DOH!!! I've just realised that I didn't have a value set on my JoomGallery extention - hence it showing a -1 value.
Just thought I'd reply to show ho to fix this is anyone goes through the same problem.
Cheers,
Pete

Can you help me figure out what is wrong on my site map???

http://www.co-production.net/index.php?option=com_xmap&view=xml&tmpl=component&id=8

this is the warning i get in google

Warnings - Invalid XML tag - This tag was not recognized. Please fix it and resubmit.

Parent tag: url
Tag: uid

Thank you

PS: using xmap 2.2.1 joomla 1.6.3