I know your problem is important to you, but please take note of these facts:
MiniVend has been downloaded over a million times, and is included on CD-ROMs that have been distributed hundreds of thousands of times.
The mail list has had over 30,000 posts in its lifetime, many of them questions.
The author has received tens of thousands of messages about MiniVend.
There are thousands of users running tens of thousands of catalogs with Minivend.
The author is only one person, has a family, has a living to earn, and is still actively developing MiniVend.
If you think about these things, you will see why the web site and the mail list are the only reliable support for MiniVend.
There are a number of consultants who frequent the mail list, and the MiniVend web site has a list of people who have declared that they do MiniVend consulting.
Bear in mind that companies spend up to millions of dollars to put a high-quality catalog operation on line. MiniVend has been used to provide catalogs that rival those high-end operations in many ways. But, as they say, TANSTAAFL.