Helping people with computers... one answer at a time.
Saved network connections should automatically reconnect the first time you try to use them. There should be no need to do anything special.
When I boot XP, saved network connections are listed, but are not automatically reattached; how can I force it?
Well, first use should transparently make the reconnection. You could force that with a batchfile on startup that does a DIR on each directory, but that really shouldn't be necessary.