I just kind of threw this together for the sake of getting it out there because I don't think we have one of these guides. I'll edit this with colors that are easier on the eyes when I have more time! Hope this helps! :D

HATCHING:

Step 1: Hover/click Explore at the top navigation bar.

Step 2: Pick a Planet :D

Step 3/4: refresh until you find an egg

Step 5: After finding an egg, click on the link that says "Click here to pick it up"

Step 6: Go to your hatchery (click the orange cracked egg at the top left, or click the blue link that says "View Hatchery"

Step 7: Click the red button that says "Incubate"

Step 8: Wait until the button turns green and says "Hatch!" (The time duration is different for every creatu.-- to see how long it will take to incubate go to Information>Creatu Species>Select your species and it will say the incubation period at the top)

~~~~~~~~~~~

BUYING:

Oooh I really need to change the colors on this one.

Step 1: Hover over Information and click "Creatu Search"

Step 2: Click "Rancher Shop" in the top box, and enter in the number 1 in the 1st box next to "Price" and enter 10000 in the 2nd box. (10000 is the amount of tu you have to start with, so that's why I chose this number

-Note: you can highlight other fields, as well, but the chance of being able to afford them might be slightly less. (This is just a generic guide n how to buy creatu xD)

Step 3: Find a creatu you want.

Step 4: scroll through the pages of that rancher shop (if there are multiple pages), and find the creatu you're going to buy and click either the pet image or "View Detailed Info."

Step 5: Click Purchase.

Voila!

awesome helped me ALOT