You don't need a hotsync name. All you have to do is enable network hotsync on you pc side (I am using windows xp) and input the ip address of your pc in garnet vm (I am using a router so 192.168.1.102 is mine... you can find yours by looking at your TCP/IP settings).

The "chosen number" i was referring to was your palm ID number. Garnet automatically gives you one, but if you are starting via shortcut you need to manually choose one. I just looked at the one garnet vm gave me, and chose that. Mine was 12 digits/letters I believe.