Just a note to matters- I've just uploaded a new version a few minutes ago. If you've already downloaded version 1.2 be sure to get the latest version 1.3 instead. The 1.2 version has been on the site for a couple of weeks but I hadn't announced it as I was still testing. Finally, last night I uncovered a serious bug in the new installwatch libraries so be sure to use the latest src2pkg-1.3 version which goes back to the old libs.
The link given is the new home of the src2pkg packages and sources. Although I'll probably be making a separate web-page for src2pkg soon, the latest package should always be found in the same place.