help

No real difference, but a "congress" is usually a bigger, grander occasion, I think.

"Help" is not a good thread title

try to make your thread titles reflect what will be in your posts

The subject should be relevant to the topic or question.

Ideally the subject line should be able to summarize the question.

Using a relevant title will greatly increase the chances of an answer.

An example of a bad title is: "HELP ME!" An example of a good title is: "How do I reinstall Windows XP?"

Using all caps and screaming for help will usually mean most people ignore you.

If you use a relevant title with relevant keywords more people will find your topic.

Please tell me if you understand this.