My existing forecast is under my /forecast/advforecast2.php location. I also made another file without some extra html in it as /forecast/advforecastmini.php , but can't get that to work either.
I'm thinking I just have a simple include issue not being coded right. Anyone have an idea?
A good part of the issues you're having is based on the directory structure the script (advforecast2) expects versus how you have installed it on your site. As distributed, the script works correctly when it is installed in the document root so the layout looks like:
./advforecast2.php
./DualImage.php
./forecast/icon-templates/*.*
./forecast/images/*.*
You've installed it in
./forecast/advforecast2.php
so when it's included in
./test.php (one directory up), the internal locations for the icons/DualImage.php are incorrect.
I suggest you relocate your advforecast2.php, DualImage.php to your document root, and make sure the ./forecast/images and ./forecast/icon-templates directories have the proper content. It will be far easier than trying to massage the script's internal references to work in both the document root and in the directory you'd originally installed it in.