Most certainly TKIP is implemented. Temporal Key Integrity Protocol is part of Wi-Fi Protected Access.
If it is WEP that You are talking about then You should see when the Access Point was made - if its before 2003, most likely there won't be TKIP included, if its made after that year, most likely either TKPIP will be implemented into WEP or You shall be able to upgrade Your Access Point so that TKPIP would be included.