when did you buy V9 ?

I see you already have v9. 

Yes, you can import and convert the old v8 project. I also suggest you to have a look to this pdf for furher suggestions

www.websitex5.com/v8tov9

I bought it yesterday.

Thanks, I looked to that pdf, but I have following problem now: when I import old v8 project in v9, everything was good, but when I trie to save it with v9 version, I just have following message in the new window: "Saving Project and updating files" and nothing happen, it never come to the end and save a project like v9 project ??? 

Hello, I suggest you to open a project, just because it is a diffferent issue.

Anyway I think that you can try to:

1. open and convert the project
2. click on Preview to view the pages
3. click on Save to save the project

If it does't solve, please open a new post and, if you want, set it as PRIVATE so you can also send us the v8 IWP file to test it!