Old text:

This application was developed at the German Cancer Research
Center (DKFZ). The software is developed on the basis of the
well established, free open source software toolkit The Medical
Imaging Interaction Toolkit (MITK). For additional information
check the help pages or our website www.mitk.org.

Instructions:
[IMAGE]
[TEXT LINK]
[more info >>] (text link again)

New text:

This application was developed at the German Cancer Research
Center (DKFZ). It is based on the well established, free open
source Medical Imaging Interaction Toolkit (MITK). Visit our
website for additional information:

[IMAGE]
[TEXT LINK]

Sounds better, but I would probably keep the reference to the local help files, so people know they have a comprehensive offline help.

Done. :)

[fafe01]: Merge branch 'bug-13120-WelcomeText'

Merged commits:

2012-09-17 14:20:08 Stefan Kislinskiy [884e93]
Inserted reference to local help pages.

2012-09-17 13:48:51 Stefan Kislinskiy [47b037]
Rewrote welcome text and improved link to MITK website.