The newest version of ADL will allow you convert your exisiting algos created in pervious versions of ADL into the new format
To import a 7X algo:
Open the desired algo in 7X ADL.
Export the algo to the desired .algo file.
Log into TT and open ADL.
From the File menu, select Import 7.x Algo.
Using the system dialog, locate the exported .algo file and click Open.
The algo is converted and loaded on the ADL Designer canvas.
From the File menu, select Save to save the imported algo.