Hi Goofy22, in order to post pictures you need to sign up with a photo sharing service. Many of us here use Photobucket. It is free to sign up and you can store many photos on there. You then upload your photos to your Photobucket account. You can create folders to organize your photos as well. So for example if you want to upload your 2006 trip you can create a folder called Disney 2006. Then from within that folder you can create other folders such as Magic Kingdom, EPCOT, Pop Century, etc, etc. You then go into your folder and then use the upload tools to upload your pictures from your computer. Once your pictures are uploaded you will see each photo. Beside or underneath the photo will be an IMG link. You need to copy this link and paste it into your post here in the POP Photo thread. When you paste the link in you can do a preview on your post to see if it is working correctly. You should see your picture.
One thing to note when uploading your pictures is to size them appropriately so they that they aren't too big to view in the post. There are options when you upload or in your preferences where you can do this. I think a good size is 640 x 480.
I hope that I've explained it well enough. If not keep asking questions!