yes the auto stores are usually wrong. if you shake the mount you can hear the fluid. Autozone tried to sell me the hydraulic one saying it was solid but he pulled the wrong part. the part numbers were the same except one has an "s" at the end.
here are some listings for the solid mounts for reference.
engine mount
WESTAR EM2796S Info
Front; Solid Mount
Choose: [Regular Inventory] (Only 4 Remaining) ($11.61) [Private Label Package] ($12.48)
$11.61
ANCHOR 2796SR Info
Front; SOLID RUBBER
Choose: [Regular Inventory] ($14.75) [Private Label Package] (Only 1 Remaining) ($23.79)
$14.75
trans mount
WESTAR EM2712S Info
Solid Mount
Choose: [Regular Inventory] (Only 6 Remaining) ($12.12) [Private Label Package] ($12.40)
$12.12