Creating Sitemap Errors

EDIT: Sorry didn't see I posted in wrong forum

Hi,

Any idea why I would be getting these error messgaes when creating a sitemap?

Thanks

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Warning: gzopen(/home/xxxx/public_html/vbseo_sitemap/data/sitemap_1.xml.gz) [function.gzopen]: failed to open stream: Permission denied in /home/xxxx/public_html/vbseo_sitemap/vbseo_sitemap_functions.php on line 533

Warning: gzopen(/home/xxxx/public_html/vbseo_sitemap/data/urllist.txt.gz) [function.gzopen]: failed to open stream: Permission denied in /home/xxxx/public_html/vbseo_sitemap/vbseo_sitemap_functions.php on line 537

Warning: gzwrite(): supplied argument is not a valid stream resource in /home/xxxx/public_html/vbseo_sitemap/vbseo_sitemap_functions.php on line 545

Warning: gzwrite(): supplied argument is not a valid stream resource in /home/xxxx/public_html/vbseo_sitemap/vbseo_sitemap_functions.php on line 556

Warning: gzwrite(): supplied argument is not a valid stream resource in /home/xxxx/public_html/vbseo_sitemap/vbseo_sitemap_functions.php on line 559

Warning: gzwrite(): supplied argument is not a valid stream resource in /home/xxxx/public_html/vbseo_sitemap/vbseo_sitemap_functions.php on line 556

etc etc etc

Hello,

make sure that you have permissions for vbseo_sitemap/data/ folder set to 0777 and all files inside that folder set to 0666.