Please ask me,
Need update our old site. How it's difficult?, update the CakePHP v0.2.9 site ->to the current version
Start over? Cuz the migration path prior to 1.x is steep indeed.
Are you have the link for this migration 0.x-> to 1.x ?
need migration 0.x-> to 1.x
Forget it. There is no easy way. You want to upgrade a more than 10 years old software. Practically it means a complete rewrite.