Comment 2 for bug 497348

The notation to use would be "changeset:trunk,200" as described in the README file. This denotes "everything that belongs to revno 200 in the trunk branch". "changeset:200/trunk" would have been "everything in the trunk subdirectory of revision 200 of a branch located at the root of the repository", and as you don't have such a branch, it won't work and isn't expected to.