Create customisable progress meters to track your projects to completion.
No! ProgressFly ships with a Units field (which you can set for each progress meter you create). Specify whatever units you want here, whether it be words, pages, stitches, dollars, kilograms...
At the moment, ProgressFly is not widgetised. If you wish to display a progress bar in your sidebar, you will need to edit your template.
If you wish to embed a progress meter in a page or a post, you do not need to edit your templates, nor to embed executable php code into your post, as ProgressFly ships with an embedding function. See the list of function calls possible.
Of course. Since version 0.60, ProgressFly ships with a subpage under the Options menu. Here you can change the global defaults to whatever you prefer. These defaults will affect every new meter you create although, as always, you can change the defaults on an individual meter without changing the defaults.
Due to a change in the WordPress architecture, ProgressFly v0.61 can only be used on WordPress 2.7.
If you don't have WordPress 2.7 installed, I would recommend upgrading to 2.7 for security reasons.
If you can't or won't upgrade, there's a simple hack: open up bibliofly.php, navigate to lines 357, 358, 402 and 567, and in each line change "tools.php" to "edit.php".