Blogger Post

Any internal links in the blog will still point to the post in the old blog

For example this link points to a popular article in Blogger-HAT.  

If I export-and-imported this post into a new blog, the link would still point to the same place, ie the post in Blogger-HAT - not to the post in the new blog.

Any pictures, videos etc in the old blog will still be in the same place that they were in (Picasa-web-albums, YouTube, Google Videos etc).

If you have imported more than the number of posts that Blogger allows per day(currently 50 I think) then to make any more posts today you will need to complete the captcha-test (ie entering the letters in the funny-shaped word).   This will go away approximately 24 hours after you last enter more that the maximum-posts-per-day.