dont worry, its not a stupid question.  you need 
an ID to view finished auctions.  this is a 
difficult task to take on if you dont understand 
japanese, but using this translator will help you.
http://babelfish.altavista.com/
navigate around yahoo JP! until you figure out 
how to sign up.  you can also search the forum 
archives on information which will aid you in 
signing up, though finding those posts may prove 
challenging.  other than that, you could ask 
someone you know with an ID to check the outcome 
of the auction.  if you dont know anyone with an 
ID, im sure someone on the forum would be glad to 
help.  i hope this helps you.