These are .zip archives. The version to be found on CTAN is 0.9. The latest development version (if any) is the one below with the highest number/letter. Aside from PDF files, all the files in these archives are plain ASCII files with Unix-style line endings, except for version 0.5.01 and earlier where all files have DOS-style line endings. Conversion of ASCII files may be necessary on some OSs in either case. mfpic07a.zip contains two PDF files, which accounts for most of the increase in size from previous versions, and 0.8b+ have 3 PDFs.
The manual for version 0.6 may be read or downloaded (hyperlinked PDF with index of commands): mfpicdoc.pdf. The manual for later versions is included in the release.