The templates distributed with Roundup are stored in the "share" directory nominated by Python. On Unix this is typically /usr/share/roundup/templates/ (or /usr/local/share...) and on Windows this is c:\python22\share\roundup\templates\.
The template loading looks in four places to find the templates:
An example TEMPLATE-INFO.txt:
Name: classic Description: This is a generic issue tracker that may be used to track bugs, feature requests, project issues or any number of other types of issues. Most users of Roundup will find that this template suits them, with perhaps a few customisations. Intended-For: All first-time Roundup users