Deployment and Revision

I want to revise/update an already deployed/published database/VB application. I was barely able to get the original deployed. The only method I was able to make work (even marginally understand) was the publish wizard project. All of the content I have been reviewing for this is very confusing and I have found nothing, that I can understand, on how to up revision or redeploy an existing application. However, I was eventually able to successfully deploy the program... kind of.

I would appreciate any offerings on how to properly publish/deploy an original database application (windows) and then how to revise/update the application without altering the database or the records in the database.