Brian already knows this, but for anyone else who may be interested, I've put some compiled versions of the Matlab code (McRetroTS) here with instructions:
[
afni.nimh.nih.gov]
Note, the program McRetroTS does not require Matlab to be installed at all, but some Matlab libraries need to be installed. Inside Matlab, RetroTS required both the Signal Processing and the Statistics Toolboxes.