At last I have some little time to migrate my posts from my previous blog to this blog. I have to get through several steps to get this done. First I export the WP database from this blog into local WP that I have installed in my computer.
After that, from my local WP, I import all the posting from Blogger with built-in feature from WP. Then I export the local WP database into this blog’s database. Done
I use that several steps so I have some backup if something goes wrong. Although all posts are imported, but not all the comments are imported. The comments that are using Haloscan services can’t be imported. Yes, there is a way to import them, but it cost some money