That depends on which links your talking about. Your page links or services links? Because you are using the Website Wizard, check out my answer to a similar query at this link.
Well, it was not clear from your question what you want to be bigger. Are you trying to make the page links bigger or do you want the links to your services bigger? Or am I completely misunderstanding what you want?
The link I provided was to another persons query on making the link font bigger, on a Website Wizard creation. If that's what you want to do, the technique is the same, but you need to be more specific.
