Can I install only iWeb from iLife 11 disc?

I've found a sealed copy of iLife 11 for sale, and I would like to only install iWeb3, as it seems easier to use that version with another host, as compared to iWeb2.

Also, how will it affect my current install of iWeb2? Will I have to recreat all my pages ands post all over again?

Thanking you all in advance,

Doug