Best way to post both to vBulletin user blog and WordPress blog?

[LIFEPACKR]

I have two domains hosted on the same server. One is a personal WordPress blog, the other is a travel community vBulletin forum.
I am a user on my vBulletin forum, and have my own blog on that system. I would like to duplicate any of my blog posts I make in my personal vBulletin user blog onto my personal WordPress blog. Or it could go the other way, duplicating any blog post I make in my personal WordPress blog onto the vBulletin user blog.

For reference, the WordPress blog is located here: http://jordanlwheeler.com/blog , and my vBulletin forum user blog is located here: http://forums.lifepackr.com/blog.php/5

I have found a few plugins that do something similar, but most of them post to vBulletin forums, not to user blogs.

Any suggestions would be appreciated! Until then I'll be copy/pasting manually.

[Zachery]

I am pretty sure blogs have an external.php that is an RSS feed. You could use the RSS feed to grab the contents and post it into your wordpress.

[LIFEPACKR]

A user on wordpress.org gave this tip:
WordPress supports XML-RPC, and PHP is capable of interacting with something similar on a remote site. So the concept can certainly work on the WP end. Success would depend on what resources and capabilities you can access on your vBulletin blog. For that side of it I have no idea about what's possible

Does anyone have any idea on how to use that?