Sorry, don't know of any tut's for that. Learnt all I know from The Animation School in Cape Town.

Q1o you have photoshop?
Q2: what do you know about texturing? IE, the difference between a phong, blinn, lambert, and phong E?
Not questioning your intelligence or anything. Just you said you don't know much about it.

See, different parts of your fridge are gonna need different finishes. Like the inside rack is shiny and rusty, and the rubber strips is dull and dirty, and then the outside is different all together.

Now it is possible just project a photo onto an object. But you don't have much controll over it.

Otherwise you could paint it using maya paint. But that's really hard to get it to look great.

For photoshop:
Combine all the chrome, rubber, painted and plastic objects in their separate groups.
Assign suitable shaders to those objects.
Fit their UV maps into the top right hand corner of the UV texture window.
Image-create PSD networks in the UV texture editor.
Now you have your psd doc. Go play around in photoshop and save .
Back in maya go to image-update psd networks. Press 6. The textures should show.
No you can trun off layers in photoshop, but do not delete them unless you're the one that aded them. It completely messes up the doc and makes you compy freeze up.

Ok so that's the really short version. Maybe I didn't help at all. You should be able to get most of this in Maya help.
Good luck kiddo
Zel