The thing is, in each directory containing these files, there is an index file. I don't know the name of the index file (i'm actually searching for *.tab, *.btab, *.crd, and *.pro files at http://www.nutz.org/olga/main). I've tried educated guesses such as index.pl, index.cgi, index.php, index.php3, index.shtml, etc. None of them have worked. Now, the index lists and links all of the subdirectories and files in the current directory. If I can find out the name of the index file, I can probably make a script that will scan the html code for links to a subdirectory and/or *.tab file and either switch to the index page of that directory or download the file.
-NM