Before I say anything else, let me just say that I think you're very creative, and that your report is an awesome idea, with a lot of potential.
Here's my personal opinion... If you want to be the Number 1 report as your signature says (whether its intended to be just for fun or not) and want your readers to really respect the thoughts and opinions in your articles, then it would be a good idea to correct any mistakes you can find before you post the report.
Yes, we all make mistakes, and even if you correct all of the mistakes you can find before posting, there may still be a few you don't notice until after posting. That's OK. But, if you don't correct the more obvious ones, then people will assume that you put as much thought and effort into gaining the info you post about as you do in compiling it into a report, and they wont have as much respect for what you are saying, and may not be as inclined to read it then.
Its great that you have more than one person involved in putting it together, because each will have their own area of expertise. One might be more skilled in the art work and layout of the report, one might be an interesting writer, but doesn't spell well, and one might easily spot spelling and grammar mistakes, but couldnt write an interesting article to save their life, etc. That's a good thing, becuase when you use the talents of each to your advantage, then you end up with a better product overall.
All that said, Im an adult, and probably a bit of a perfectionist. If your report is intended for kids, then it wont matter as much. Younger kids are more forgiving and apt to read and believe what you say, regardless of mistakes they see in what you're saying. But, if you want an audience of all ages, then it would be a good idea to take the extra time to make the report as mistake free as possible before posting it.
Again, I think your report is a great idea, and I have a lot of respect for the fact that you have the talent and motivation to put it together. Keep it up!
Edited: To say that I didnt vote.