Is it possible. E.g. instead of using go to x: y: is there a block or block combination in 1.4 that moves another sprite. perhaps, using the block in variable section and then using the from sensing. Does anyone have any solutions?

A sprite has to move its self. Set variables for the desired X and Y locations

set [desired X v] to [55]
set [desired Y v] to [99]
broadcast [MOVE IT v]

// in the sprite you want to move,
when I receive [MOVE IT v]
go to  X: (desired X)   y:(desired Y)