Hi Julie,
I am highly experienced in Joomla and could update your site with no problem. I currently run my own site with Joomla and have set up and modified several. I can do the links you would like, add any modules, even create specific modules for you. I would have no problem completing this job before the first and can start immediately. I hope to hear from you soon.
I would also like to add that I am the proud owner of a fantastically well behaved fawn and white American Pit Bull and am a huge animal person ;)