Complete Copy File Path!

Hi,
Dear Dimitri,
I want to make a folder inside the program root directory and rename it with a value get from a text box.
after that I need to copy the file in that folder and get full path of file! (Because when I copy file into a directory, only my directory and file name was saved in database, for example if the file copied to this address "images/filename.jpg" , when I tried to get path of file I got this path : "C:\images\filename.jpg" and this is not the true file path).
How can I do that ?
Thanks a lot