Do you know any software which can be more detailed then Dreamweaver .........?

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I have bought an website so the site is fine and made on PHP script but i want to edit the templates so the problem is i am not familiar with coding and html so the dreamweaver and frontpage only displaying the coding so i cannot work on it the design i want to make .......... i am looking for a software which could show me the whole page in details and can edit the templates with just click of the mouse so i can work on it more comfortably ......... If you could tell me one i will be grateful .......thanks