for the speed touch modem
You may need to be a lot more specific than that: speedtouch make a few modems currently and have made quite a few more that are discontinues but may still be available on the market.
If you find the model number of the device, you might find the software in downloadable form on their website, or if you list the model number here it might be more likely someone here can help.
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Current ISP: Andrews & Arnold (AAISP) via FTTC at ~40Mbit down (has occasionally dropped to ~36) & ~10Mbit up, joined July 2011.
Previous setup: Be Pro with UploadPlus (ADSL2+, AnnexM), 12ish Mbit down, 1.6 up, happy customer for ~2.5 years.