Hello there, I've read through the instructions, the usage and the configuration files - the question I have is I'm in the process of upgrading my shop - from 1.3.0.2 to 1.5. I'm opting to do a complete rebuild because too many things have changed, though I intend to use my existing database. I understand that IH4 is totally different from IH2 which is why I am concerned that something may go strange with the install since I'll be using my existing database.

Thanks in advance for your help and guidance