I don't know much about the LOR convert process , however ,
Do you not have to add the models that you are importing against ie the 144 channels to the sequencer grid ?
If yes , then to do so , Right click on the left column of the grid , Select Edit Display Elements , then add the models,
If not , then someone else will have to respond.
You can create timing marks either manually or having xL generate beats / bars etc .
I see that you are using an fseq , so you must have saved after doing the import ?