I have a problem that I need a solution for. Basically, I need a site which incorporates four different domains as so:

Home
www.1st.com

1st Section
www.2nd.com

2nd Section
www.3rd.com

3rd Section
www.4th.com

Blog
www.1st.com

Contact
www.1st.com

I am using 1.5, and can have all domains pointing to the same public_html folder, but how do I get:

a) the 1st, 2nd, 3rd sections using their url
b) how do I get it so that if a user goes to say www.4th.com, it automatically takes them to the 3rd section, rather than (as if it were an addon domain or whatever) going to the home link

So for example...

Home - www.1st.com/index.php
1st Section - www.2nd.com/index.php?option=com_content&view=article&id=41&Itemid=22
2nd Section - www.3rd.com/index.php?option=com_content&view=article&id=42&Itemid=23
3rd Section - www.4th.com/index.php?option=com_content&view=article&id=43&Itemid=24
Blog - www.1st.com/index.php?option=com_content&view=article&id=44&Itemid=25
Contact - www.1st.com/index.php?option=com_content&view=article&id=45&Itemid=26

I hope thats clear! I would like to use the same Joomla! install for all these if possible, otherwise it would be an easy task, and to sum up, need to have each domain pointing to a specific section (and all the links in that section through that URL), and for each of the menu links to take you to that section but through the correct URL.

Oh, and I don't want to use frames!

(Sorry if none of this is very clear, I hope someone gets me!)