Hi Jennifer,
The new database engine is based on
SQLite. Behinds the scenes it's completely different and significantly more stable/reliable. From a developer's perspective there are some changes that you might have to make in code. But the general workings are still the same. There isn't anything in RB2005 to import a 5.5 database into the new format. But the old format is still supported (for now) in code. So you could write an application to open the old database, create a new database, and then copy the tables and records from the old to the new.