is there any reason why 'SetMessage' isn't working?

[Unearthlybrutal]

The problem is what ClayPigeon said.
You can use this in your .lang file:

Spoiler below!

<LANGUAGE>

<RESOURCES>
</RESOURCES>

<CATEGORY Name="CustomStoryMain">
<Entry Name="Description">YOUR DESCRIPTION HERE</Entry>
</CATEGORY>

<CATEGORY Name="Inventory" />
</CATEGORY>

<CATEGORY Name="Messages" />
<Entry Name="blood">Violet:[br]Is...is that my blood...?[br]What the fuck happened to me!?!</Entry>
</CATEGORY>

<CATEGORY Name="Descriptions" />
</CATEGORY>

<CATEGORY Name="Levels" />
</CATEGORY>

</LANGUAGE>