The complete error message that I get is this, sorry about the incomplete one:

# /sbin/thttpd_wrapper: /sbin/thttpd_wrapper: 21: egrep: not found
tail: illegal option -- 3
BusyBox v1.1.2 (2006.10.26-05:33+0000) multi-call binary

Usage: tail [OPTION]... [FILE]...

Print last 10 lines of each FILE to standard output.
With more than one FILE, precede each with a header giving the
file name. With no FILE, or when FILE is -, read standard input.

        -n N[kbm]       print last N lines instead of last 10
        -f              output data as the file grows

/sbin/thttpd_wrapper: /sbin/thttpd_wrapper: 21: mail: not found
/sbin/thttpd_wrapper: /sbin/thttpd_wrapper: 21: /usr/local/sbin/thttpd: not foun

Your help is greatly appreciated,
Best Regards,