Lightbox and image location

Hi,

I´m having trubbles making lightbox displaying images I have located
in public/images/extra/
I can see them when accessing the image url directly.

This post looks blank:
<typo:lightbox img=“/images/extra/transporter.png”
thumbsize=“thumbnail” displaysize=“original”/>

I can access the image at
http://martin.stabenfeldt.net/images/extra/transporter.png
I´m having some trubbles with Apache only showing the directory
content of the “public” directory, not generating any pages, so I´m
redirecting everything to port 3000 where I´m running Webrick for the
moment.

http://martin.stabenfeldt.net/images/extra/transporter.png redirects
to http://martin.stabenfeldt.net:3000/images/extra/transporter.png

Is the images located and addressed right?

I´m not sure if the redirect matters, since the theme look good,
meaning it can access other files in the public directory.

Best regards,
Martin S.