Macro To Copy Value To Consecutive Cells At Different Row No

I have an Excel worksheet (ver.2003) containing data more than 5000 rows. I need to run a macro everyday to do copy a value for that cell each day from another cell in different respective rows :

Using # as a marker in a specific col (say col X2, X14, X27, X43 and so on ) I want to copy value from another cell (AE2, AE14, AE27, AE43 and so on) containing a forumla and paste as a value to a cell say B4 in a row of fixed range (say B4:V4, B16:V16 and so on), which is two rows below the marker. The value to be copied is located in the 7th cell (say AE2) to the right of the marker cell (X2). If first cell is blank (say B4) then I copy data into the first cell. Every time I run the macro the value should be copied to next blank cell in that row (C4, D4 and so on).

I need to run the macro everyday for a specified no. of days say 21 working days in a month, which is the length of the range) copy the value for each in different rows as explained above. What is the VB Excel macro for this? ...