TRI respects the CD Dynamic configration. Muliple websites in one webapp are setup in a snap!
<?xml version="1.0" encoding="UTF-8"?>
<Configuration Version="7.1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="schemas/cd_dynamic_conf.xsd">
<URLMappings>
<StaticMappings>
<Publications>
<Publication Id="3">
<Host Protocol="http" Domain="my-long-amazon-url.website.com" Port="80" Path=""/>
<Host Protocol="http" Domain="website.com" Port="80" Path=""/>
</Publication>
<Publication Id="4">
<Host Protocol="http" Domain="website.com" Port="80" Path="/nl"/>
</Publication>
</Publications>
</StaticMappings>
<StorageMapping IdentifyPublicationByProperty="publicationUrl"/>
</URLMappings>
<TCDLEngine>
<Properties>
</Properties>
</TCDLEngine>
</Configuration>