Hi Erika,
The feature is only available in CR for Enterprise at the moment.
If you're OK with selecting the currentdate from the dropdown, here's a workaround:
1) Go to the Database Expert > Click the Connection Name > Select 'Add Command' > Type in a simple sql query that returns today's date. Example for oracle would be:
Select SYSDATE from DUAL
2) Don't link this Command Object with other tables on the report
3) Create a new Parameter > Select 'Dynamic' under 'List of Values' > Under the 'Value' column choose 'SYSDATE' from the command object > Click create parameter > OK
-Abhilash
