Help needed Upgrading from Adobe Dreamweaver CS3 to CS5

Hi All

Can anyone advise me regarding upgrading from Adobe Dreamweaver CS3 to CS5 please.

Adobe CS3 has served me well but now I need to utilize SFTP and CS3 is not good for this so my questions are:

1. I think CS5 has the SFTP functionality built in out of the box? Am I correct?
2. Downloading the CS5 upgrade from the adobe site overwrites CS3 without the need to un install cs3 first?
3. Are there any issues I should be aware of?
4. Are there any precautions I should take?

Thanks a million for any help or advice anyone can offer.

Kind regards – Mick