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Hello there,

I'm trying to get one of my sites updated to Joomla 3.0.1 with K2 and a RocketTheme template. Since my old site (J 1.5.x) is using the Sitemap plugin, I want to also use it on this updated site. However, after installing the Component and attempting to add a new sitemap, I get the following error:
Fatal error: Class 'XmapHelper' not found in /JOOMLAINSTALLPATH/administrator/components/com_xmap/views/sitemaps/view.html.php on line 31

I tried adding "require_once(JPATH_COMPONENT_SITE . '/helpers/xmap.php');" just above the if statement that encloses line 31, but then got an error stating:
Fatal error: Call to undefined method XmapHelper::addSubmenu() in /JOOMLAINSTALLPATH/administrator/components/com_xmap/views/sitemaps/view.html.php on line 32


Also, adding that line broke the main page of the xmap administration page, so it was certainly the wrong way to go
I'm not super proficient with coding for J components so here I am hoping someone can help.

Thanks.