You can manage with precise the position of the ALP window by replacing some attributes in code view as follows:
In your link or element on which you have applied ALP review the code. Should look much like:
See where 'left','top'
statement apear in onClick statement.
it can be also 'center', 'bottom' and 'right' depending on which position you have selected for ALP window in UI.
Lets say you have selected 'left','top'
position. You go in code view in DW and instead of left and top you enter in some numeric values - 200 instead of left and 300 instead of top. This will position the ALP at 200px to the left and 300 px from the top.
This way you can set the required position of your ALP.
Be aware that this change will be overridden if you open the ALP UI and click OK.