Moving data from sheet1 to sheet2 and deleting sheet1 data

I have Excel 2007 and I need help to move data from sheet1 to sheet2 and deleting data from sheet1.
I have worksheet1 with customer, production, shipping etc. Once an order has been completed I want to delete if from sheet1 and transfer the information to sheet2 so that I have an ongoing record of what was completed. The first 3 rows are a frozen header and I’m using columns A thru AA, and rows 4 thru 3000. Upon completion of an order I would like to place an “x” in column A and have the transfer take place, moving all remaining data up to fill the deleted cells and placing the transferred data on sheet2 by moving all previously transferred data down one row and placing new transferred data into row 4.

Thanks for the replies. I’ve tried both and neither worked. I can’t help but think there is something going on preventing the macro from working. I had another modified event code that worked for a day and then I added a few more formulas in the spreadsheet, and it quit working. I then delete the original event code and tried it again with no success. Then my plead for help.

Started with fresh worksheet and both codes worked.
A big thanks, you've saved me a huge amount of time