tedster - 4:40 am on Mar 15, 2006 (gmt 0)

I just focused on something else you said:

My site, www.newexample.com is a new one, lanuched on Nov 2005, and www.oldexample.com is an old site

New domains, even with a 301 from an old domain, can take months to get their urls established in the Google index. This has been called the "Sandbox Effect" -- and before Big Daddy started to dominate this forum there were many, many, many threads about it. There is a chance this may also play out in the future of your new domain. Google is attempting to protect themselves from spamming by new, "disposable" domains.

Get any links you can to point to the new domain name, including some "deep" internal links. And other than that, continue to build quality in every way you can. It sounds like you've got lots of traffic and that should help make any sandbox effect you suffer relatively short.