[TYPO3] Typo3 4.0 Install Problems

[Amir M.]

Also, last question..

I'm a bit confused about the Database Analyser.  Is there any risk in 
using the Import function?  It says that some tables will be dropped, 
will that mess up my current website?  It also has two links for 
Compare/Import.

One of them is besides "Update Required Tables"  and "Dump Static data" 
and the other one is near "typo3conf/database.sql (1.1 M)."

Which "Import/Compare" do I select?