Page 2 - Dynamic Variables, Levels & Persistence

I was very interested in what was going on here and I wondered if you could help me?
I am on Flash 5.

I am having trouble getting data from a txt file once I have created it using fscommand("Save",C:\\program Files\\Text.txt");
since i cant open it up in the first frame by using
loadvariablesNum("C:\\Program Files\\Text.txt",0);

I used to be able to do this fine when the txt file was in the same folder as the swf files because I opened the txt file up on frame 1 and appended to one of the variables in it then resaved so that i could create a simple shopping cart over several swf files.
Is this a logic error on my part or something peculiar to flash 5?

any ideas? basically persistance of the variables is lost and the file does not append -it replaces.t need to be able to open the txt file from another folder and load up the variables.
any ideas?
shaf