I tried with the sample data but it is not giving the exact output:
The sample data is :
545689512<tab>20070424<tab>20070414<tab>456.25<tab>20061121<tab>pqr
<tab>20060726<tab>20060524<tab>800.12<tab><tab>abc
24<tab><tab>05242006<tab>22.15<tab>20050815<tab>xyz
57<tab>20040425<tab>20041214<tab><tab>20040628<tab>stv

Data will be from 3rd row in the file, the following is the script I tried:

#!/bin/ksh

awk -F"|" 'NR>=3 { ## data is from 3rd row onwards
if ( $2 ~ /^ *$/ ) printf("102")
if ( $4 ~ /^ *$/ ) printf("104")
printf("/n")
}' $1 ## filename

The out put I got is:
$ test6.ksh test1.txt
102104/n102104/n102104/n102104/n$