Hi Rieyaad,
You're welcome, sorry for the delay.
While I was trying to reproduce this problem initially, I imported/restored a back-up of our VisualRF configuration into a second server - Restore VisualRF KB - and although the background image was initially blank, I do believe the locations were maintained.
I do believe it is possible, although you may want to open a TAC case concerning restoration of the original locations - they may have some commands to simplify this by extracting whatever file dictates the "campus map coordinates (x,y)" for the campus layout from your pre-8.2-backup that was created during the upgrade process. They may just attempt to perform the KB I referenced above to restore the entire VisualRF data, but I figured better to contact TAC just to be safe.