Easy way to take a screenshot:

Open the page you want to capture (task manager), press the Print Screen key. Now open Paint (start > all programs > accessories > paint), click on Edit, click Paste. Now your shot should appear in Paint. Click File > save as, choose where to save it (somewhere easy to find like desktop?) as a gif or jpeg.

Then, when you want to post it as an attachment here:

Reply to the topic, click on Manage Attachments > go to where it says 'upload from computer' > browse. Find the screenshot file, open it & click Upload. When it's uploaded, close that attachments box. Go back to your reply & you should see your attachment name in the attachment section of the reply.
Now just post it:wink: