Merging contents of two files

[Katharina.Pergens at dlr.de]

Sorry sending a html file. Once again.
So what I have is a text file (.txt) like the following:

Abbreviation	Explanation		File			Line
------------	-----------		----			----
	xyz	comment for class	/home/de/abc.java	13
	...		...			...		...

The txt file contains of several lines and rows. The rows are seperated
by tabs.
The source file (mentioned as row 'File' in txt file) are java files. I
search for firstname.secondname in the header:
	* Created: dd/mm/yyyy firstname.secondname

How to write the script. Thanks for your help!!