printing one record ONLY

I finally got something workin in crystal report version 9. So my report has been created etc etc. But heres the problem Im having...it displays all the records in the database. I just want to run a print out of the report based on a user entering an ID number...is there a way to do this.

For instance a user is looking at ID # 200..and he wants to print out this record. When I run the report currently it shows all the records in the database...but all I want the printout to do is print ID #200.

Thanks,
Jon

create a subreport for that record.