Yes. Go this link and follow the instructions for
whichever model iPaq you have.
http://www.vodafone.co.uk/cgi-
bin/COUK/thirdlevelnavigation.jsp?channelPath=%
2FVodafone+Portal%2FGet+more+from+your+mobile%
2FInternet+on+the+move%
2FSet+up+your+PDA&category=phonesandpriceplans+pdas&BV_Sess
ionID=@@@@0725712033.1066745598@@@@&BV_EngineID=cccdadcjjkh
eeedcflgcegjdgnfdffl.0
Best wishes,