Blog to Blog

Hi,

I have a weird situation, I have a client who has an html website with a wordpress blog added in a sub directory. I’m creating a new WordPress site on a new host and I was curious what’s the best way to move all the old blog posts over to the new sites blog section without disrupting the new sites theme/database etc. Hope that makes sense.

I don’t know if this makes a difference, the new site is using a temporary domain which will eventually be changed to the original domain once the new site is completed. I was also curious about if I need to do a 301 re-direct. If I’m eventually changing the new site domain back to the original domain and maintaining the same page titles is it necessary?