Text Generator

I need a windows xp script that can insert a list of variables into a user input text string. Here are the steps: Step 1: type in string inside of text input box i.e. I am a {keyword} lover. I really like a {keyword}. step 2: load a .txt file of variables from your computer (one per line) i.e. dog cat monkey big bird bug step 3: click "Generate" step 4: specify output folder Result: the script builds a new .txt file with each sentence rendered with variable inserted. so the result will look like this: I am a dog lover. I really like a dog. I am a cat lover. I really like a cat. I am a monkey lover. I really like a monkey. I am a big bird lover. I really like a big bird. I am a bug lover. I really like a bug. Would be greatly appreciated if you can complete this script today.