Using the existing WordPress template, improve look of site, SEO, security and plug-ins, widgits, etc. -- 2

I simply would like for you to visit my site ([login to view URL]) and make modest changes - not altering or re-designing the site. I want to be able to embed a new YouTube Video of the week on the home page, add a gallery to the gallery page so that i may upload photos, check for the proper plug-ins and widgets and make the site more aesthetically appealing.