TP7DOCS.HLP is the Help file for the TAS 7 Compiler. The help that is in there will not help you to use the Report Editor, not unless you are writing a TAS7 program to call the report editor like we do. The report editor program is really Digital Metaphors Report builder as implemented by ADDSUM for TAS 7 so even if you download the HELP from Digital Metaphors web site, 1) you need to get an older version (7 I think), and 2) just cause the Editor can do some things, does not mean it has been implemented in that way by TAS 7.
Sorry for the lack of help...