Migrating from old domain to new domain

Hi,

As the topic says, what I’ve actually done was;
1. Copied all the file contents from old domain to new domain.
2. Took a back-up from old database, import it to new database.
3. Downloaded “find and replace plugin” & tried fixing the URLS.

I can access the new URL since I’ve propagated the blog properly. But, I can’t access posts because each time when I click it says “404 not found”.

Can anyone advice me whether I’ve missed anything within the process. I really want the old file contents. Because, all themes and modification are within that.. : /

Thank in advance.