I tried renaming it but it did not work.
The other important element to identify and retrieve the download number of a media file is the ID of the post.
If a you write a post then it gets a ID which does not change if modify the post later. But if you delete the post and create a new one with the same title and content then this new post gets a new ID.
If you have created a new post for the modified file then it would also explain why podPress does not display the existing download numbers.
Do you have access to the data base of your blog via an web interface like phpMyAdmin?
The name of the interface may be different in your case. But if you do have such a possibility then you don’t need to know how to write a PHP or any other script. You can access your data base via such an interface directly and modify single values manually.
The results of the stat method Counts Only are in the table wp_podpress_statcounts. The results of the other methods are in the table wp_podpress_stats.
Well, I guess it would be easier to make the necessary modifications if you use the Counts Only method. Because this method summarizes the clicks while the other methods store each click in the db. In case of Counts Only you would need to edit only a couple of entries depending on how much files you have altered.
But if you stat method was Full (or Full+) then you would need to modify a lot of line/entries (maybe hundreds of lines) and would be more efficient to do this with an SQL command.
Maybe I can help you with that.
Anyway import is to find out the current and the previous file name(s) as well as the current and the previous post ID(s).
Which stat method do you use?