1) Try to avoid using USB adapters unless PCI or PCMCIA is out of the question.
2) If you need to use USB and it's not working very well, try running it without software in driver-only mode, letting XP control it.
This requires the full and complete removal of both the software and the hardware; after unintsalling the hardware via Dev Manager, it is sometimes necessary to uninstall and reactivate the USB host controllers and sub-entries. This is done in the same way; right-click and select uninstall. They will automatically reinstall on first use.
Reinstall the adapter as if you were installing a PnP device and manually select the driver from the CD.
3) When a newly created connection fails to function, either sort it out or delete it and start again. The creation of 5 (!) WLANs is just going to compound your problems.