I suppose it looks alright on the front-end, but on the back it's not so good.

You are A.) using tables...this should no longer occur, especially coming from a 'web design' company. B.) not only are you using tables, but you've got some serious div-itis going on. Typically div-itis occurs when a person simply tries to replace all the table rows and cells with div tags, which is also a no-no.

I'd recommend you get on some tutorials for building table-less websites using efficient CSS techniques.

You could really lighten your markup with a bit of effort.