EDIT:
After I click export, it doesn't open anything up or anything. How do I retrieve the .dts of my model?
The exporter is opened in one of Blender's sub-windows (i.e. 3D view, properties menu, etc). The window that is used to display the exporter seems to be dependent on where your cursor is when you click the export menu option, but not always.
Sometimes it will decide to use the User preferences window for some reason (the window is mostly hidden by default, drag the top menu bar down to access it).
If the exporter still doesn't open, then you could try installing the correct version of Python on your computer.
Also are any errors displayed in Blender's console when you try to open the exporter?
AALLSOO, are you using the 64 bit or 32 bit version of blender? You should be using 32 bit, since 64 bit exported models are not compatible with Blockland.