Where can I download latest version of Geo Web Publisher?

You have to log a service ticket for latest priority build. 
Unfortunately the infamous bug was never resolved so it is still unstable for WMS publishing. At the same time there is no replacement for GWP. 

Thanks Oto,

I can not found any version of GWP. Is there a link to this product?

GWP is discountinued product so there is no link anymore you have to ask here.