I would capitalize Assistant in both Administrative assistant, and Virtual assistant
I recommend using Tess' comparison chart instead of the VANA one as the clients can plug their own numbers...
If the mailing address is your home I suggest getting a PO Box - I doubt you want clients just "dropping by" 
I have
recently dabbled in a working knowledge of Peachtree Accounting, Microsoft Accounting, Power Accounting, MS Money, MS Access and Adobe Dreamweaver
. , and
I am
currently having a ball in the process of learning Microsoft Publisher and Adobe Photoshop.
Combine these two paragraphs
I am quick to learn new programs so if you use something I’ve never tried, let me have a crack at it for a week or two. I would delete this paragraph altogether.
Re-order the site map to match the site.
I would change all references to "I" and "me" to "us" and "we."
Otherwise, looks great! I love the colors.