I'm trying to transfer a 150M account from my dedicated server to a VPS

I tried two methods but neither worked.

1) The WHM method by using the account name and root password did not work. sometimes they told me account file has a problem and another time it froze in the middle

2) I tried to send a complete backup to the server's FTP.. then move it to the home directory of the VPS.. then restore the backup.. but it also didnt work.. it said something about the account cpanel user information being missing. I followed the protocol outlined in a topic here.

Both methods worked for some other accounts!

so is there a third way to transfer?

I'm sure there gotta be one... I'm hoping to do it as soon as possible

plz help me!

and give me detailed steps because I'm far from being an expert at this.