Hi Martin,
Thanks for your response. For some reason AX wasn't pulling in the TMS dll with the one I customized even after adding it as a dependency. I finally fixed it by creating a new solution, adding both my project and the tms project, adding it as a reference, building then deploying. This time VS said one already exists do you want to replace and it seemed to actually update this time as when opening the project from AX it loaded the tms project as well.