I've already created an account and they said they would send me an Activation Code withtin 5 minutes. It's been 30 and nothing!!! >.<
Don't get mad!! Sometimes it takes time, but if it's already been an hour and nothing ask them to send you the Activation Code again. If your mail is from Hotmail, sometimes the mail is sent to to your Trash Can or Spam so check it.

I want to have a Nutrinopet!!!!! .. But I don't know how :(
You can create your own Nutrinopet or adopt one (World-East-Pound-Adopt).

Where do I buy food for my Nutrinopet??
There are many stores on "World" like Bakery the Hot Oven, Candy Store, Drinks, Frozen Treats, Fruits & Veggies and General Food.

OK, now I have food but how do I feed my pet?
On the left bar there is an option "Inventory". Click there and then on "Food". Click on the item you want to use and then choose the Nutrinopet you want to feed.

I am poor and I don't have enough money to buy food... I don't want my pet to die!!! ;_; HELP!
Breathe!! Don't be scared! That's why exists the Food Pantry (which is behind the book's store).

I play and play and play but my pet doesn't seem to be hungry.. Is something wrong with him/her??
Nope, nothing is wrong. As much pages you see, your pet will feel more tired and he/she will get hungry by the time.

Hygyne?? Mood?? o.O What's that!!
Well I think you know what it means; you raise your pet's hygyne but grooming them, you use products from the Grooming Parlor. By playing with them with toys or plushies you will increase their mood. But they decrease easily so it's not necessary to worry about that, if they have low hygine and mood they won't run away; that only happens when they are starving.