I've explained this very badly. Let me try again.
I started a new blog at a hosting company called Westhost. It's the same name and domain as my old blog here at libsyn. Until a few days ago, if you went to copperrobot.com, that URL sent you to my libsyn blog—now it goes to my blog at Westhost.
So far so good. Everything working according to plan.
However, I have about 50 posts at my old blog. The old blog is still exactly where it was before (here at libsyn) but it has a new domain: copperrobot.libsyn.com. That means all my incoming links from other blogs are broken.
What I want to do is redirect links to individual posts on my old blog to their new URLs. For example, I want to redirect this link:
http://copperrobot.com/index.php?post_id=505157to its new URL
http://copperrobot.libsyn.com/index.php?post_id=505157As I understand it, I need to put a .htaccess file on my new blogs server, but I don't know how to write that file, and Googling for answers isn't helping out.
Is that more clear? Can anyone help me with that?