I really don't like the VS2008 Start Page. I don't need the RSS reader, Getting started or Headlines. The only thing useful is "Recent Projects"
Is there a way to customize it or replace with a better one?
It will be nice that the page contains Favorites Projects and Recent projects.
P.S. I know that I can disabled it or replace it with other web page, just looking for a good productivity tip.
Goto Tools > Options > Environment > Startup and pick the best option you like
One suggestion would be to follow the steps here: http://blogs.msdn.com/saraford/archive/2008/01/03/did-you-know-how-to-customize-what-visual-studio-opens-to-or-how-to-make-the-start-page-not-show-up-when-vs-opens.aspx
You can also check out the useful information here. Aso for suggested things, check out this post.
Here's an article with a lot of detail on how to precisely customize the start page. Unfortunately, it looks to be a rather arduous process. But hey, if you have the time...
The link posted by Kyralessa is a complete answer to your original question. Unfortunately, it does look like a complicated procedure.
I'll just add that if you're worried about any performance impact associated with fetching the RSS feed, you can enter a non-existent URL such as http://localhost:12345 that will fail quickly and reduce the amount of content needing to be rendered. In that way, you could keep the 'Recent projects' panel.