Tape drive support again

[Allen, Jack]

        We are installing a Dell 6850 and loading RH AS 4. Dell is
telling use we need an Adaptec 39160 HBA to connect the tape drive to.
Doing "strings aic7xxx.ko | grep 160" show 29160 and 19160 but no 39160.
My question is which driver supports this HBA? 

Thanks: 
        Jack Allen