Also, I'd like to open the site for anyone with an online 'shop' (in the UK) to be able to add their site automaticaly. Will Dreamweaver handle this or do I need another database/form programme - or is it not possible?
Ahhhh.... another directory site..... well, it is a good practice ground for HTML/CSS skills.
As Terrorke suggested, learn some coding instead of relying on software. I suggest you really take a stab at learning CSS -- just a few styles will improve the look of your page immensely.
* My screen resolution is set at 1680x1050
* I'm accessing your site through a T1 line
* I'm probably viewing it using Firefox (unless browser is specified)