Build an Online Store

Website, [login to view URL] was done by a contractor in freelancer who did not even put security (captcha) in our forms so that we are not suffering from many spam mails (too late for us to discover and we have already paid the contractor, sigh). Anyway, I want that fixed and also have an affiliate program, preferably post-affilate pro and need manual for the whole site (which previous contractor did not also supply us so we can add updates). Hope someone with a good heart can help fix a charitable website and help many poor people with the most affordable bid. Thanks.