Cripes!, this is getting complicated! After reading this article then going through help files brings me to "network connections" then there is "Dial-up connections" and "Lan or high speed Internet" checking properties of both reveals they both have firewall settings, the "Lan or high speed internet" is disabled and the "Dial-up" is enabled. Going further in "Dial-up connections" Advanced - settings has a tab for "sevices", "security logging" and ICMP.
Services has 11 tick box's, only 2 ticked:
msmsgs 11982 UDP
msmsgs 12875 TCP

ICMP has 9 tick box,s (all unticked):
Allow incoming ech request
Allow incoming timestamp request
Allow incoming mask request
Allow outgoing destination unreachable
Allow outgoing source quench
Allow outgoing paramater problem
Allow outgoing time exceeded
Allow redirect

I don't know if any of these should be ticked to allow uploads?
Advise would not go astray!!