G98 cannot work properly on AIX 4.2

Hi,
 G98 for AIX was untarred successfully, but it still
 cannot work properly.
 G98 was installed into the directory of /usr/g98. And the following two
 lines were added into the file .login.
 setenv g98root /usr
 source $g98root/g98/bsd/g98.login
 But the error message appeared, which listed below.
 star: /home/ybfan/test 32>g98 < water.com > water.log
 exec(): 0509-036 Cannot load program g98 because of the following
 errors:
         0509-023 Symbol kioctl32 in csh is not defined.
         0509-023 Symbol kpread in csh is not defined.
         0509-023 Symbol kpwrite in csh is not defined.
         0509-023 Symbol kread in csh is not defined.
         0509-023 Symbol kwaitpid64 in csh is not defined.
         0509-023 Symbol kwrite in csh is not defined.
         0509-023 Symbol _system_TB_config in csh is not defined.
         0509-026 System error: Cannot run a file that does not have a
 valid format.
 Could you please tell why g98 cannot work in our computer and how can I
 solve it?
 With best regards
 Y. Fan
 --
 =============================================================
 Yubo Fan                         Email: yubofan[ AT ]guomai.sh.cn
 Organic Synthesis Lab
 The Department of Chemistry
 Fudan University                 Phone: 8621-65648139
 No. 220 Handan Road              Fax:   8621-65641740
 Shanghai, 200433
 P. R. China
 =============================================================