Honestly, I, for one, don't think it's completely beyond redemption, but there's a time and a place for everything.
If you want your site to be taken seriously, I wouldn't use Comic Sans. Every time I look at it, my first thought is 'work will set you free'. Maybe a little sinister, but that's almost what it is. A misleading installation of false hope.
Regarding the hover colour, my guess is that the theme you're using defaults to a very dark grey. It's very changeable once you know how. What browser are you using?
Regarding the blog / site design, consistence is a very important part of experiencing your site. Customers are easily frightened by anything with a dramatic change of appearance, and while your current fans may stick around through thick and thin, newer viewers may be quick to turn around and run
Though there's no sense trying to make one look like the other unless you have the time to, but for what it's worth, I would suggest making the site look more like the blog
Your font should be set as a global constant by which all elements conform unless otherwise specified