These volumes are in the process of being converted to multi-file HTML webs. The volumes that have not yet been converted are available as large text files of 1.5 to 3.5 MB each. Because of this and because the text paragraphs are not wrapped, you may have to download them to your system and read them with a word processor. A windows-based word processor is preferable because some special characters from the Windows character set are used. In some cases, volumes have been converted to HTML webs, which can be downloaded as a single zip file via @FTP -- look for a file called html-web.zip.
Look for major improvements in this version of the Early Church Fathers in the next couple of years.
@More information on using the WinHelp files is available on a page from Maged Kamel, who did the conversion. In particular, you will need a patch for the Table of Contents files that ship with volumes 1-3 and 9-18.