Uploading of images is easier now. You can select multiple images at one time then upload. The 1st image you load is also featured image. Following is the instruction on how to upload images to your posting.
Step 1:
Click image for larger version. 

Name:	attached.jpg 
Views:	1165 
Size:	50.6 KB 
ID:	663557
Step 2:
Click image for larger version. 

Name:	attached2.jpg 
Views:	1136 
Size:	86.2 KB 
ID:	663561
Step 3:
Click image for larger version. 

Name:	attached3.jpg 
Views:	1135 
Size:	70.1 KB 
ID:	663560
Step 4:
Click image for larger version. 

Name:	attached4.jpg 
Views:	1136 
Size:	97.6 KB 
ID:	663559
Step 5:
Click image for larger version. 

Name:	attached3a.jpg 
Views:	1135 
Size:	124.8 KB 
ID:	663562
Step 6:
Click image for larger version. 

Name:	attached5.jpg 
Views:	1134 
Size:	90.2 KB 
ID:	663558