Ok its solved. Now i know how. For all who want to know to get it, here the instruduction:
Extras - Settings - Network - Gnutella - Edit:
Change Gnutella2 change Optimal to HUB Modus, then edit:
Edit G2 connections:
Leaf to Hub: 3
Hub to Leaf: 320
Hub to Hub 64
Save it.
Close Shareaza and restart Shareza - Search Connections in Host Cache: Select all and connect
=)