What is running on the PC that can connect? -- XP Pro?
Can the XP Home box ping the Samba server?
Then there is the error msg.:
... You might not have permission to use this network resource. ...
doer the Win user for the laptop have both Unix & Samba accounts on the Samba server? Alternatively, would adding a "guest ok = yes" line in the [cp], or perhaps the [print$], section of the smb.conf
Beware, I am only a student of Samba . . .