Module development and code questions

Hi,

I have a site running. Its been running fine for a long time but today suddenly one of my dictionary terms wasnt listed in the category anymore. I had a category named "video" which had 28 items. Now I managed to play around with phpmyadmin and fix the term_data "video" with a "tid of 2" because all the posts in the video category were with "tid 2". Now the category is listed properly on my site and all the items are there but I ams still facing another problem.

Is there any way to associate MD5 hashes with the files attached via the upload module, so that users can verify the integrity of the file they are downloading? I mean, aside from computing it yourself and mentioning it in the node body.

Where are the forms or links to use after creating a paypal subscription item using the paypal subscription module? Aren't the users supposed to be presented with a link or form to subscribe if they have not already done so?

After seeing the Metadata-driven workflow of John VanDyk, I was testing this stuff here at home. But I challenge a problem.

For example, you have the following workflow: (creation) => WIP => rereading => publishing

When you're admin, you can access a state who isn't published.

But when you're not admin, how can you give roles permission to see this states?

hello everybody,

I don't understand how to create a module?

If somebody can help me, would be really sympathetic.

I'm interested in placing a word limit in a node entry ... perhaps by utilizing flexinode. Essentially, I want users to write an entry that can be no longer than 750 words (or perhaps 4,000 characters.)

Does anyone have any ideas on how to make this work?

Many thanks,

Matt