Windows 7: help me create directory name aliases please

Win 7 changes the way directories are organized, and now programs that use "old directory names" need new directory names. Consider this entry from a program called Reference Manager

file://C:\A_journals\MAUDE-ICD event_FDA2007.pdf

"a_journals" was a directory where all journal articles were stored. I used "a_" so that all of these directories were at the top of the "open file" command.

The new way to do this in Win 7 is

file://C:\Users\rozniak\My Journals\Guidelines\2006 MHRA (British).pdf

So I need Win 7 to see

"c:\a_journals\" in a file name
and think
"C:\Users\rozniak\My Journals\"


Is there an easy way to do this? I keep this directory synchronized across many computers. Currently, they are all XP but they are slowly being converted.

Thanks