Yes indeed, I found the Skin I was using and moved it. Had to search a bit to turn off everything but the clock but it's great to have it back.
While I was at it I also found a way to transfer my old Thunderbird Profile to the new install which included everything, mail, addresses and all settings. I am happy camper, thanks.
Fractal Design R5 | Asus Z170 Pro | Intel i5 6600k | 16 GB G.Skill Ripjaws DDR4 2133 | Seasonic 650w PSU | eVGA GTX 550 TI | Samsung 960 M2 500 GB | Samsung 850 EVO 500 GB | ASUS Burner | Windows 7 64-bit