No it's not possible. The 8110 does not have a wi-fi radio built into it which is required for wi-fi access. If you want wi-fi you will need to trade the 8110 in for a 8120 which has a wi-fi radio (but no gps)
BlackBerry - Pearl
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Moleman2k
BlackBerry Certified System Administrator (5.0)

(7290 -> 8700 -> 8120 -> 8310, with Robbers) -> (8130 -> 9530 -> 9700 w/ Telus)