You can not change back from version 7 to 5 with any utility. You, can however export your files from Version 7 into a text file and import back into version 5. You will lose imbeded objects in Documents and any opportunities you have entered. Although if your concerned about printing to a day planner I doubt you are using Maximizer as a CRM tool but as more of a address book, in which case exporting will work for you.
In case you were wondering Maximizer 7 does not use the pervasive SQL component for most of the program only for customer service and orderdesk, the rest of Maximizer uses the Pervasive Transactional engine as it always has. Version 5 used Btrieve 6.15 which without the Client Server component did not use shadow paging and therefore did not have a rollback ability. Without rollback you get situations where a record was damaged during access which leads to error codes like error code 2. The only recover is resort to backup or accept data loss.
The move to the newer pervasive now allows your non client server Maximizer to allow for shadow paging and prevents that kind of corruption from occuring on your data.
If printing your address information is essential to your business you can use a reporting tool and make any kind of address reports you like, by connecting to the Maximizer ODBC driver. If your really ambitious you can even go to the SQL version make a SQL view that pumps out your addresses to a report which you can print or view over the web.