I've seen people say (when asking for a .psd file to be sliced and the html page built) that they don't want the html page done with 'image ready' code, but rather with 'proper' code. My questions are....

A. What is wrong with a page built using the 'image ready' program from Adobe? What are the limitations or faults? Don't a lot of templates use this?

B. When I see "begin image ready slices" or similar code at the beginning of a template design, this means it was made using the 'image ready' program right?

C. Take TemplateMonster for example.... do their templates use 'image ready'?

D. Overall, what should people look for to determine how a page is coded, and what is 'proper' code?