Hi Tara,
You need 25 posts until the forum unlocks the photo feature for you. (Its a glitch).
Once you get your 25 posts in, you can either:
1.Attach a photo using the attachment feature.
2. Copy an image URL and paste it in this little box from your table
3. Most popular option is to use a photo host.
IMGUR or
Post Image The majority of us do this.
Feel free to contact a staff member directly for any assistance,
Clover