Welcome to linux, though I must admit I cringe at the idea that ubuntu
9.04 was your introduction - that release was a low point for ubuntu,
and a performance disaster in a number of areas, so I hope your
experiences with it won't turn you off to linux.

My advice is to get ahold of ubuntu 10.04 as soon as possible and
install it before wasting any more time with 9.04, and you'll be in much
better position to get support, as 10.04 is the current release, and it
is also a "long term support" (LTS) release.

ubuntu 10.04 is a free download from ubuntu.com, and free CDs are
available from a number of LUGs.