Sitemap and Webmaster Tools

I am having some issues with some of the sitemaps generated by vbseo in webmaster tools, see the screenshot:

Also anyone know why so many urls are showing up in the sitemap but not in the url's web index

You should try to resolve all warnings and errors that they provide you. Click through and try to implement the changes they suggest.

It will likely never be 100%, but in time can get close.

Here are the errors, I don't know what they mean:

Parsing error We were unable to read your Sitemap. It may contain an entry we are unable to recognize. Please validate your Sitemap before resubmitting.

All the others say this:
URLs not followed
When we tested a sample of URLs from your Sitemap, we found that some URLs redirect to other locations. We recommend that your Sitemap contain URLs that point to the final destination (the redirect target) instead of redirecting to another URL

Also if I look in my vbseo in vbulletin, and try to open:
http://legalhelp.org/sitemap_addon_1.xml.gz

Nothing happens

Also for my search engine pings, the one for yahoo is always listed as "FAILS"

Yahoo/bing have disabled their ping servers.

What addon are you using? If you aren't sure, you should remove any script names from the options panel at the bottom, as the code you are using may be invalid/incomplete/for an old version

I am using vbtube and downloadsii:

vbseo_sm_downloadsii_v6.php
vbseo_sm_vbtube.php

Anyone know why my addon sitemap isn't working?

You need to contact mod_authors and request assistance from them regarding your addon