Evince 0.5.3 can't open cbr/cbz files. This bug has been fixed in cvs, see Gnome bug: http://bugzilla.gnome.org/show_bug.cgi?id=342785 The attached patch fix this problem.
Created attachment 87389 [details, diff] patch
Created attachment 87621 [details, diff] patch for sidebar since this bug report is still open, I attach another patch that fixes http://bugzilla.gnome.org/show_bug.cgi?id=342807
Created attachment 87728 [details, diff] patch for broken cbr/cbz better fix for the cbr/cbz files support bug
Sorry for the delay. This is fixed in 0.5.3-r1.