Structures_DataGrid installation issues: only returns a blank page

Hello I downloaded Structures_DataGrid because it sounds like it could be a great solution however I am having a difficult time trying to get it to work. I installed all the required packages and have tried the quick example provided in the documentation, as well as some simple examples I have found online, but all I ever get is a blank screen (no errors, no inclusion warning, nothing); for testing out this package I tried using an assoc array as the data source which is supported according to the docs. I already have several PEAR packages installed and running smoothly (HTML_QuickForm, Pager_Sliding, and HTML_Table_Matrix to name a couple) so I know that things _should_ work. I have read the docs, and searched this list but haven't found anything that works and apologize if this has been covered before and if I've missed something obvious. Running solaris 5.9, php 4.3.9. Any thoughts and/or help would greatly appreciated. Thanks much