Here is an Excel dump of my London Civil and Manchester frequencies from my Icom PCR-1500 files.
If anybody has a PCR-1500, I'll post my .mch files - these won't work with the PCR-1000, but I'm sure you could import a csv file generated from the Excel file
Listen to this lot, and you won't miss much :-)
The problem with area frequencies, as discussed previously, is that you can't necessarily tie them down to one specific area. They are all allocated to the various sectors, but that's not quite how they are used unless it's really busy.
If you want to know where all the sectors are and how ATC works then, I highly recommend the ATC simulation London Control. It's worth purchasing just for the PDF manuals that come with it!
http://www.londoncontrol.com/Just take a look at the sample Sector Information Manual that you can download here:
http://www.londoncontrol.com/demo/index.htm