1) When you receive your cuttings inspect them to make sure that they are still moist and properly labeled.
2) Small quantities of cuttings can be stored in a refrigerator in plastic with moist packing material around them. Avoid freezing them because this will dry them out. Avoid Storing vines with fruit as ethylene gas is released by ripe fruit and this can kill buds.
3) Larger quantities can be buried in the ground in a sand pit or a well drained soil. Dig a trench as deep as the cuttings and then cover them with 6-8 inches of soil. The cuttings should be placed bottom side up (flat end of the cutting) so that it will warm in the spring and form callous. This is the white tissue that roots originate from. If it is very dry in the spring you may need to water the cuttings.