Glad you've sorted out the problem.

The "full" file is just a straight concatenation of each of the other minified js source files, except the UI and JQuery widget files:

http://www.plupload.com/punbb/viewtopic.php?id=1139

You can either concatenate the dev files, or just include them individually, and you will get the same result as including the plupload.full.js - but with real variable names, comments, indenting, etc.

Try using the development versions of the plupload javascript files instead of the minified versions:

https://github.com/moxiecode/plupload/downloads

Any error message will be more descriptive with the development files.

Progress events work fine for single files without chunking.  But the number of progress updates you will get will vary by runtime and, in the case of html5, by browser.  There is no control over how often a progress event is passed through in the html5 runtime - what you see is what you get.  Your mileage may vary with the other runtimes as well.  It's not uncommon with many of the runtimes, and no chunking, to only get one progress update per file - when the file has completed uploading.

Ad davit mentions above if you need more updates use chunking.

I thought you said you were using ASPX?

If you are using php, someone had a somewhat similar problem a couple of days ago:

http://www.plupload.com/punbb/viewtopic.php?id=1193

Most likely some kind of limit setting on your server.  PHP has 2 or 3 settings that can limit upload file size - perhaps ASP is similar?

Other possibility is that there is a problem with a plugin (flash, silverlight, etc.).  What runtime are you using in each browser to upload?

There have been a number of issues reported recently concerning IE9 and flash:

https://github.com/moxiecode/plupload/issues/346
https://github.com/moxiecode/plupload/issues/323
https://github.com/moxiecode/plupload/issues/378

Although this is the first I've heard of a problem with IE8.  AFAIK IE8 and flash still work fine.

What is your configuration?

Once you have the zip file on the server, you can do whatever you want with it.  The sample php files that come with the examples are meant to be tailored to whatever you need.

I believe there was some discussion about this related to a pull request on github:

https://github.com/moxiecode/plupload/pull/374

What are you using to receive the files on the server?

This is most likely due to a bug in the current release of Safari 5.1 for Windows.  There is an issue logged for this:

https://github.com/moxiecode/plupload/issues/363

You can check this - do you get the same behaviour with Firefox or Chrome and the HTML5 runtime?

IE has not implemented enough of the HTML5 standard for upload to work.  You must use one of the other runtimes.  IE is one of the primary reasons we need more than one runtime (although there are lots of other reasons - e.g. large file support, reliability, older version of other browsers, etc.).

What specifically are the problems with your implementation?  The examples that come bundled with plupload all provide a PHP backend implementation.  I would think that the natural division between the browser and server would be relatively clear and an ASP implementation would be similar in concept to the sample PHP implementations.

Also here is some sample asp code for uploading to S3, perhaps there are some similarities to what you are trying to do:

http://www.plupload.com/punbb/viewtopic.php?id=659