I want to remove this. I have done a search in all files for "Welcome to SilverStripe!" and it was found in the following:
• sapphire/core/model/SiteTree.php
• sapphire/lang/en_GB.php
• sapphire/lang/en_US.php
Am I right in thinking this text is generated on installation? I have edited the files above, uploaded them and tried numrous times to re-install SilverStripe and I still cannot get rid of it.
I am in the process of going over the whole default installation to completly remove all mention of SilverStripe and take out anything that is not needed for my clients. I will be writing documentation for this and will share it with everyone once done.