I am in the process of creating a database listing tours, something similar to what you can find on www.infohub.com.

This means that I need to create a database which can be searchable with destination, category, price and so forth. Unfortunately I can not seem to be able to create the relationships, neither can I make my head learn how to do this. I would be extremely happy if anyone could help me solve this problem for me or at least help me a little on the way! If anyone would be bugged to help me create even a simple simple example I would be sooo happy!
Thanks a lot!