attempt on website changes

Hi!

I tried subscribing to pgsql-www and now am waiting for the approval.
Judging by the speed at which the website is developed, I may have quite
a wait ahead, besides very few people may actually read a well-hidden
pgsql-www, so lets continue discussing here.

I tried implementing the changes I proposed in this message:
http://archives.postgresql.org/pgsql-advocacy/2004-01/msg00161.php

The result is available here:
http://oc.cs.msu.su/stuff/PostgreSQL.html

Of course, the layout may need some improvement, but this is just a
"quick attempt". Besides, I couldn't find the source for the logo, so
wasn't able to fix the horrible JPEG artifacts.

Comments?