I tried changing the cross to the ground in the Sptraits.txt files
of the TE_v1_03q.wdn and te_v1_03q_rus.wdn archives,
but it didn't work....
I repatched with the modified TE_v1_03q.wog and te_v1_03q_rus.wog files,
but it still didn't work...
As a last resort, delete the Data folder, take the original one from Shades of Darkness, reinstall WoG, and then patch it with the TE_v1_03q.wog file with the modified Sptraits.txt.
Before installing TE, I moved the cross to the ground in this file, and the town portal remained on the ground.