Looks like no one wants to comment on my post.
By the way I just received an email from the visa office answering my query. They said that my previous refusals would not have an affect on my immigration by skills application. Now I guess I need to ask them this question again saying that their refusals may not have any impact on my appliclation but would my lying in the past have any?
Refusals don't normally affect your application but misrepresentations do unfortunately, we are living in the era of I.T. and whether you mention or you don't, they would still have that info., best thing for you is to state everything about your past refusals when you send your completed application.
Whatever you are mentioning this time, make sure you have ample docs to prove, i.e. Qualifications and experience, the more strong your app is, the more chances of getting it through will be.