I know which one you are talking about. I have it around here somewhere printed out. Another place for grid style CMS comparisons is cmsmatrix.org.
I'm not sure these grids are a great way to compare CMS systems. I think they have "some" value, but a checkbox indicating the presence of a feature doesn't really tell the whole story. Many CMSs have similar feature sets but some have better implementations than others of specific features. "better" may also mean different things to different people, feature richness, ease of use, ease of customization, all these things may have different value to different users of a CMS. These grids don't show the nuance.
Best,
Joe