If your current website is inflexible then you are going to struggle to achieve decent search engine rankings from day 1.
Ideas, actions and strategies need to be implemented quickly otherwise motivation drops like a stone and the project to get you up the search engine rankings will at best falter and perhaps even die.
Having a flexible website in place is a funamental pre-requisite for any SEO action plan to take place. At Webyell we have been involved with Website creation and Website development since 1997. Having a solid web background ensures that we can give the best advice to our Customers on the right website software for your organisation.