this
define("_MD_XHTTPERR_SEARCH", "Search this site:");
into this
define("_MD_XHTTPERR_SEARCH","Search this site:");
Otherwise will not be added on TX
define("_MD_XHTTPERR_SEARCH", "Search this site:");
define("_MD_XHTTPERR_SEARCH","Search this site:");
The dutch community is very busy with translations and a lot of modules were available on nlxoops.nl and the languagefiles on sourceforge.