Why is google not seeing my full site map

Google says my site map is 44,000 urls
my vbseo panel shows

Index File sitemap_index.xml.gz
Sitemap File #1 sitemap_1.xml.gz (20,000 URLs, 430.78Kb) 4,315.39Kb uncompressed
Sitemap File #2 sitemap_2.xml.gz (20,000 URLs, 3,804.81Kb) 3,804.49Kb uncompressed
Sitemap File #3 sitemap_3.xml.gz (20,000 URLs, 4,511.77Kb) 4,511.45Kb uncompressed
Sitemap File #4 sitemap_4.xml.gz (20,000 URLs, 4,438.31Kb) 4,437.99Kb uncompressed
Sitemap File #5 sitemap_5.xml.gz (20,000 URLs, 4,466.44Kb) 4,466.12Kb uncompressed
Sitemap File #6 sitemap_6.xml.gz (20,000 URLs, 4,449.17Kb) 4,448.85Kb uncompressed
Sitemap File #7 sitemap_7.xml.gz (11,413 URLs, 2,590.56Kb) 2,590.24Kb uncompressed

so that is a lot of urls missing. What is wrong? I am fairly sure i am running the latest version
vBSEO Google/Yahoo Sitemap Generator v2.6 is © 2005-2009 Crawlability, Inc. All Rights Reserved.

any advice would be wonderful

Hello James,

Please make sure you only include showthread pages, forumdisplay pages, CMS pages and blog pages within your sitemaps. Any other content is just unhelpful.

vBSEO Sitemap Generator : Quality vs Quantity