Speaker size, 98 Honda Accord EX?

I was wondering if anyone knew what size speakers are in the doors and what size are behind the back seat. I don't want to buy them from an audioshop because they're too expensive.

Should be 6 1/2s in the doors and either 6 1/2s or 6x9s in the back.

Thanks. I'll check into it. Do you know how to post pictures on here? Or rather, a good hosting site that will allow me to?