SDL WorldServer 10.2.1 - how to configure W3C ITS Compliant XML Studio File Type filter

SDL WorldServer 10.2.1 - how to configure W3C ITS Compliant XML Studio
File Type filter

We are using SDL WorldServer 10.2.1 and Tridion 2011. (Windows Server
2003/Tomcat 6.0/SQL Server 2008 R2) Recently the Tridion folks asked me to
ensure that the appropriate filters (Management | Linguistic Tool Setup |
Filter Configurations) were installed and configured to allow dynamic
values to be used from Tridion.
So the appropriate filter (Text Studio File Type) is installed and
configured for WS for what Tridion wants to do. The following inline tags
are added:
{.+}
~.+?~
So for example, when a new project is created and uploaded file source is:
Hello~test~my~test~name~test~is~test~Robert
Hello^{thing.thing}World
The result in Browser Workbench is:
{1}{2}{3}{4}
{5}
While this is exactly what is desired, it is only working in WS. While
Tridion is able to connect and create projects in WS, they are not able to
get the same result using the same source file. It is reported that the
filter "W3C ITS Compliant XML Studio File Type" should be configured.
Would someone be kind enough to assist with the configuration?
Thanks