Our website provided a free download of WebSiphon 2.0 for Mac. The software is included in Internet & Network Tools.
From the developer:
A Complete Web-Application Development Solution
WebSiphon has been designed from the start as a professional Web development solution. From basic form-processing and dynamic page generation to full-scale data-driven Web applications, WebSiphon delivers.
WebSiphon uses a server-side scripting language, SiphonScript, which is embedded directly into your HTML documents.
You may want to check out more software for Mac, such as Arch, Opera Update Checker or AmazonSearch, which might be related to WebSiphon.