Hi bob5146, did you try to follow what Katdragon posted ?
I can quote it for you.
Here's what you have to do from the start:
1. Download KoboBulkFixer from:
2. Unzip the file and run KoboBulkFixer.exe
2a. If you get a message that says "Component ‘COMDLG32.OCX’ or one of its dependencies is not correctly registered: a file is missing or invalid." then follow the instructions here: http://devonenote.com/2010/02/regist...x-on-x64-win7/ (if you're having trouble with these then I can step you through it).
3. Once you're in KoboBulkFixer then navigate to the folder where your epub files are by hitting the "browse" button. Make sure the books that you want to fix are ticked in the big window.
AN IMPORTANT NOTE: KoboBulkFixer will replace your original files with the fixed ones - so you might want to make a copy of the originals in case something goes wrong.
4. Hit Start and wait for the success message.
5a. Don't worry about the options unless it doesn't work. If it doesn't, open the options button and select "Delete CSS Entirely".
Hope this helps.
If you still need help you have 2 options
1: Ask your question here and explain us where you have some difficulties.
2: Wait for next week, Kobo is suposed to release a FIRMWARE (i know it is a big word, but i just mean "FIX what's broken".) And in this firmware, it should automaticly fix the size of your books.