Hey Phantom... don't worry, we're here to help!
First, download irfanview from
www.irfanview.com and install it!
Before you start FS, run the program. Go to options and choose capture. Set a hotkey ( if you press it, you'll take a screenshot, ex. when flying in FS) and don't forget to deselect include mouse cursor! In saving options, you should choose a folder where to save the screenshots. The program will put them there automatically, so you won't have to leave FS. Than press start and go flying!
Now, when you have your shots, choose file and open. Go to the folder where you've saved your shots. Click one one of them and you'll see it appear. Then resize it, using Image - resize/resample - there you can set the width to 800, the height will follow automatically. Than save the shot, using the file tab.
When uploading to simv, set the display settings to details when you browse for your shots... this way, you'll see how "heavy" each shot is.
I'm not sure if Irfanview allows to change the quality of the shot during saving, as I d my resizing in Photoshop. There you can determine how much kb the shot will be. But most of the times you'll see your shots will be under 100 kb using Irfanview!
I hope this helps!
Cheers,
Omag
PS... I took the liberty to resize the shot, one of the mods would have seen it eventually and it would have disappeared... ;)