Free extensions for Joomla!

Hello all,
I installed joomla 2.5.4 and virtuemart 2.0.2 and XMAP I installed 2.3 version, I enabled all of the plug-in, but opening the component XMAP out blank page. please help me I have to put into production the site as soon as possible and no sitemap is useless

Same problem here. J! 2.5.7 install, Xmap component screen is completely blank. Two menu items available, but they look identical. Neither of them work.

EDIT: Uninstalled all extensions containing "xmap" and reinstalled the 2.3.0 pkg, and it works now. Looks like there was a leftover old xmap that jUpgrade tried to upgrade possibly.

I updated Joomla 2.5.7 to 2.5.8 now XMAP is showing a blank page where there used to be a very large Site Map.

I uninstalled XMAP and installed XMAP 2.3.0 but now getting an install error:

JTableMenu: :_getNode Failed -
Error building Admin Menus

Uninstalled and reinstalled it.
AKEEBA backup is not installed.

Site map is still totally blank.
This is on a live site.