Multisim 2001 and spice

hello experts!!!
i have Miltisim 2001 and i need some informations for the way that program is using spices.which version is using the Multisim? pspice? i dont know very much about them i try to solve a problem at my design which is a power amplifier.i cant manufacture the 2 mosfets,1 fet and 1 transistor and i'm searching spices for them.if somebody can help me i'll be appreciate.the mosfet's are 2SK135 or 2Sk134,the fet is 2N5460 and the transistor is BC447.if someone want to see the circuit to propose some other elements please message me to send the circuit by e-mail.
thanks!!!