I have installed the lasted update and on certain parts of DBA I get the following error, "Error: you are not licensed to run this program, Please contact istech to purchse a valid license" can someone help. I am not able to enter any purchase orders or due basic inventory transactions"
 

No, the Error Leslie is referring to is from an IS Tech Support update, not a DBA update and I already sent her the file she needs.  There is no file you would ever have to install on each workstation.  if DBA sent you a new license file because yours is expired, it only needs to be installed once to the server.