You can enter everything ... price, name , descriptions and such but how do i enter an image for my product? Also does anyone get an error where it says "Cost Price must be lower than Sale Price?" shouldnt sale price be lower?

i don`t think you can add images unless you use a third party cart , cost price is what the product costs you so obviously you will sell it for more than you paid i.e sale price , cost price can be left a 0.0 if you want, it is used for your profit and loss report .

You use to able to add your logo to the order pages. I spent hours making ours look nice and the next day they wiped it away with the new system. :(

They're working on new order pages.