it may also be worth noting if your looking to build a better site, a lot of places now use PHP, cold fusion, and XHTML.
It's not just flash you need to learn, there's an ungodly amount of other drap you need to know to run a "homemade" web site.
there's a number of "premade" software packages that let you set up a website like UM without knowing programming.
top 2 atm are Postnuke and PHPnuke. (just add.com to the end to find thier webpages) These are free to use, but they require a server with some sort of database program (mySQL, or MS SQL)
check out
eqseekers to see my last use of postnuke.