integration of gallery2 and x_treme-theme in drupal52 with drupals gallery-module

Hi,

I have some problems with the integration of Gallery2 with x_treme-theme (by Pedro Gilberto http://www.pedrogilberto.net/) into Drupal 5.2 with gallery-module (http://drupal.org/project/gallery)

With one of the standard themes, the gallery works without any problem, but with x_treme-theme, the gallery operates only in standalone modus.
Integrated in drupal, I be able to call the site-administration of gallery2 inside drupal, but if want to display a picture or one of my galleries, it is shown out of drupal or I get an empty page.

Drupals log section says:

Unable to initialize embedded Gallery. You need to configure your embedded Gallery.
Error (ERROR_STORAGE_FAILURE)
in modules/core/classes/GalleryStorage/GalleryStorageExtras.class at line 1001 (GalleryCoreApi::error)
* in modules/core/classes/GalleryStorage.class at line 505 (GalleryStorageExtras::addMapEntry)
* in modules/core/classes/GalleryCoreApi.class at line 2841 (GalleryStorage::addMapEntry)
* in modules/core/classes/GalleryEmbed.class at line 846 (GalleryCoreApi::addMapEntry)
* in /var/www/syscpwebs/.../drupal52/modules/gallery/gallery_base.inc at line 89 (GalleryEmbed::addExternalIdMapEntry)
* in /var/www/syscpwebs/.../drupal52/modules/gallery/gallery.module at line 205
* in ??? at line 0
* in /var/www/syscpwebs/.../drupal52/includes/menu.inc at line 418
* in /var/www/syscpwebs/.../drupal52/index.php at line 15

This only happens on a specific server (details below) and only with x_treme-theme. On my local test server (lampp on localhost) everything is fine.

Any thoughts or suggestions? Thanks!
mirkba

---
Gallery version: 2.2.2 core 1.2.0.4
Apache version: 2.0.58
PHP Version: 5.2.2-pl1-gentoo
Graphik Tool: GD, ImageMagick
Web Browser/Version: FF (iceweasel) 2.0.0.5
Drupal: 5.2


and on localhost:
Gallery version: 2.2.2 1.2.0.4
Apache version: 2.2.4
PHP Version: 5.2.3
Graphik Tool: GD, ImageMagick
Drupal: 5.2