CRE Loaded Template to be installed

This is a two part project: Part I : I currently have an os commerce website (CRE loaded). I would like someone to customize it using the existing readymade templates available. (What I mean by customization: I'm referring to changing the look and feel of the pages. No coding expected. I just want the color, background, font and layout changed to my preferences) 1) It is just fine if we can customize the existing templates. 2) Or, if you have a template that can be used (for a minimum additional fee), I'm open to that too. 3) Or, if you can use a website design I have readily (html), that is fine too. Part II: I have a yahoo store, I'd like to install the webpages I got done for my Yahoo store. No customization required. Please respond with: 1) How you'd like to do it 2) expected charges 3) how much time will it take ? 4) I will not pay (even partial payment) till the job is done fully. If that doesn't work for you, please do not respond.