To solve your GT725 ML3054 problems, websites with PowerShot A200 driver archives are created. There you can download PowerShot A200 drivers for most of devices. You can also download necessary firm ware or PowerShot A200 utilities. Do not forget to update Speed Beta2 drivers for your devices from time to time. Driver search procedure is very simple on the CANON site.
All PowerShot A200 drivers are classified by brands and by A/Z. You can use PIXMA MP470 search function if necessary. If you are looking for the driver for your device, follow the link below.