How to get real relative path to file from project root?
example:
file places in "proj_path/any_folder/my_file.php"
i need to receive "any_folder/my_file.php"
standart macro @RelFName@ returns "/any_folder/my_file.php"

p.s. where to get list of all macros (ex @CVSRelative@ etc) ???

I think the easiest way for you would be to develop a simple php script, run it with full project path, fill file name, and calculate the rest in the script. Don't forget to surround the macros with double quotes:
Execute With: Shell
Command line: @php@ "path\to\script" "@ProjRoot@" "@FName@"

To see full list of the macros you may want to click [Show Macros] button in the bottom left corner.

Show macros do not show all macroses, for example i know about @CVSRelative@ only from standart comands.

@CVSRelative@ macro is indeed supported but only if Execute With => CVS is selected.

So, where i can list of all these macroses ?