DriverAgent (TouchStone Software) Scan results

Dimension 8200 - 4+ yrs. old.   Received from PCWorld mag. the add for above scan.  Ran it.  According to it, some of my Dell installed drivers need updating.  Went to the Dell downloads but am unable to determine which to use.  The DriverAgent scan indicates the following need updates:
1.  Dell Enhanced Performance USB Keyboard
2.  Conexant HSF V92 56K RTAD Speakerphone PCI Modem
3.  Santa Cruz Sound, Video & Game Controller
4.  Universal Serial Bus Controllers:  Dell USB Composite Device and Dell USB Keyboard Hub
Has anyone else used this scan and how can I tell what or if I really need to update ?   Any help would be much appreciated...  Thank you..
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