Can't Access Sub folders via 4.30

[RESRam]

I just made a huge mistake and upgraded to newest version of Microstudio. I thought the "ad" that showed up everytime I opened the application indicated I could use multiple folders. As stated before, I have a large folder called Karaoke Songs. Within that folder are roughly 40 other "sub"folders containing the actual songs that have been categorized for easy finding ie Adele, Duets, Christmas, etc. I can no longer access the individual folders.
I will be willing to pay to speak to someone for support to either reauthorize my installation of an older version ( which I tried to do again but kept getting an error message) or walk me thru the new version explaining how I can still easily access songs in the sub folders. Thanks.