Word Macro 2003. Need to find a text and insert some values in each begin and end of line.

Hi,

I am struggling to create a macros to find a particular tag (<start>)and insert a values in each beginning and end of line till the tag (<end>). I can find a text and replace a value, but I could not put it in loop. Please help me out to complete this.

Examples are given below....

Input Example
==========
word document contains the following text...

one
two
<start>
three
four
<end>
some paragraph text...then
<start>
Apple
Ball
<end>

Required output format
=================
one
two
<start>
<beg>three<last>
<beg>four<last>
<end>
some paragraph text...then
<start>
<beg>Apple<last>
<beg>Ball<last>
<end>


I am expecting a +ve reply...