Help with merge of the files, I think!

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Hi Chandra, 

I think your contribution is just what I need,... that is if I ever get it installed.

I am new to PHP and the instructions that you give or not clear enough for someone with my limited experience. If you or someone else could help I would appreciate it.

OK as per your instructions....

1) I have "STEP 1. Add new fields to db" completed.

2) STEP 2. Install files containing the feature into your version of osCommerce is my problem.

I do not have a clean version of oscommerce, I have modified it quite a bit.

So my question is when you say merge a file. What do you mean?

I have Winmege and I can see the difference in the files. But when I use it to copy your code... that is not in the oscommerce original code then what I end up with is a file that is just like your file. Thus I have really just over written the file in essence. 

Of course this is what I do not want to do, since I have already altered my oscommerce files before coming to your contribution.

So can I just copy your code for each file that is not in the original files at the bottom of the original files and have it work right?

If not want can I do?

Thanks
Leon