Crazy as a Left Handed Computer

hello to all! =)
can someone tell me how i can search funny videos with cats on http://www.youtube.com
im a newbie in computers and Internet

You can search YouTube by selecting the link that've edited in your post, the only issue you had was with that link to its site. Alternatively you can use http://www.google.com and search on 'funny cats YouTube', without the single quotes.