vsftpd: upload file creation and/or modification time

hello everybody,

this is my problem:

i upload a certain file to a central server which then distributes it to several others. it saves a lot of time using its fat uplink instead of mine (16k/s).
anyway, i need to check which server has the most recent file at the monent and here comes the problem. the last server which is uploaded to has the latest file every time... logically... ^^*
all files need to have the same timestamp...

is there a way to make vsftpd use the creation date and time of the file i upload rather than the time it is actually created on the server?

thx in advance