Joomla (namibia_css) + embeded G2 (greypop theme) - problem with CSS

Hello everyone,

Legal stuff...
- Joomla
Database Version: 4.0.27-standard
PHP Version: 4.3.11
Web Server: Apache/1.3.36 (Unix) mod_auth_passthrough/1.8 mod_log_bytes/1.2 mod_bwlimited/1.4 FrontPage/5.0.2.2635.SR1.2 mod_ssl/2.8.27 OpenSSL/0.9.7a PHP-CGI/0.1b
WebServer to PHP interface: cgi
Joomla! Version: Joomla! 1.0.8 Stable [ Sunshade ] 26-Feb-2006 05:00 UTC
template: namibia_css

- G2
version = 2.0.2 core 1.0.0.2
PHP = 4.3.11 cgi
WWW = Apache/1.3.34 (Unix) mod_auth_passthrough/1.8 mod_log_bytes/1.2 mod_bwlimited/1.4 FrontPage/5.0.2.2635 mod_ssl/2.8.25 OpenSSL/0.9.7a PHP-CGI/0.1b
DB = mysql 4.0.25-standard
Tools = ArchiveUpload, Exif, NetPBM, Thumbnail, ImageMagick, Gd

The problem I am having is with (I guess) css. Namibia template has a nice way of displaying text/tables over the title.jpg image (joomla.png)
When embeded G2 (greypop theme) the overlay does not work any more (joomla_G2.png), and I'd assume there must be a way of changing it. As you can see embeded G2 does not allow the title.jpg to show.
I looked through CSS, but could not find a staring point. Does anyone know how to do it?

Thank you