Microsoft Access database help

Dear CCD, LLC,
I have a small business located in the District of Columbia. My Access database contains all of my clients and their accounts (payments, etc.). However, the database was set up using an older version of Microsoft Access. I see that your company does computer programming around Washington DC. Can you help me upgrade my Access database? And in what situations do you suggest people upgrade even further to Microsoft SQL Server? Hope to hear from you soon,

Pete