Deleting a completed job from the Queue should not delete the render.  I'll need to ask some basic questions:

• Did the jobs finish?
• Where did you tell Queue to save the renders (PNGs?)
• Did the renders arrive in that destination folder?  Open the folder in Windows Explorer;  do you see the PNGs?
• what OS are you using?
• what version of Poser Pro?

Poser 12, in feet.  

OSes:  Win7Prox64, Win7Ultx64

Silo Pro 2.5.6 64bit, Vue Infinite 2014.7, Genetica 4.0 Studio, UV Mapper Pro, UV Layout Pro, PhotoImpact X3, GIF Animator 5