convert iweb website into joomla

hi I have made a website in iweb jennymcevoy.com. i am unable to install an appointment scheduler into the iweb website. the iweb website doesn't appear to look good on all browsers and i cant optimise it for search engines easily. i am using mac osx 10.5 laptop So i would like my current iweb website to be converted into joomla or word press if that is better and easier to use, i reckon i could probably do it, but i have just learnt iweb and never done this before and I need to try and earn money and I need this completed quickly in order to earn money in my very new business. the appointment scheduler is in stivasoft and seems quite straight forward however I just cant get it to work in my book an appointment page in my current website and the company i purchased it from cannot assist, i have tried everything I can think of, so it will also need to be installed on website, the back end on my isp site is already done and working, so this aspect will not be hard. it is two steps. this job is to convert my iweb website as it is, or design a better format if you can make it work with drop down menus(that was too hard to do in iweb), into joomla or wordpress, i have an ftp site using [login to view URL], i have the iweb template files located on my ftp site already, and i need to ensure my website is optimised so that i draw traffic to my business as quickly as possible please? and I need to be able to update my new site myself if needed and be able to optimise it myself in future also. I would also like you to install the calendar into my bookings page if possible so it is just done and working for me please. And i love the iweb template i am currently using. thanks very much i am on a very tight budget thanks again i am looking forward to hearing from you jenny