Hi Sam
You are in luck as there are a few excellent resources available (the best pictures are probably the link in the middle of this waffle but I thought I would point you at everything I have come across just in case!)
First is the link that Simon pointed you at - this is excellent for the secondary positions on Crete Rivet and Simonet
(Simon - I couldn't see the attached image - don't know if others can - was it the picture showing the troops in the trenches/sangars on the ridge or it something else?)
As Simon also says the IWM holds a number of period photos of the positions and some of the towns around them.
Try
http://www.iwmcollections.org.uk/qryImages.phpand then search for Jourdain or Kosturino - either search brings up essentially the same photos but there is the odd extra one or two that come up with each
Just small pictures I'm afraid, but you can purchase any you may be particularly interested in from the IWM
Next is google maps (http://maps.google.co.uk/maps) - Make sure you have the Labels ticked at the top right of the screen - zoom in on the bottom right hand corner of Macedonia until you have Strumica at the top, Valandovo at the left and lake Doiran at the bottom and then make sure you have Photos ticked which is under More at the top right of the screen
You will see a few interesting pictures of the area. The memorial is the picture on the T junction just to the right of Valandovo. There is also a very interesting picture of Ormanli, Rocky Peak and the Kosturino ridge from the Bulgarian side to the right (its the second one over) of the road between Valandovo and Strumica.
These pictures are always been added to (the last is very recent), hence why I've suggested how to find them rather than simply attaching them
However, the best pictures of the primary position on Kosturino ridge are available on
http://www.flickr.com/ courtesy of gearoidoh
Search for Kosturino and then click on gearoidoh which is a link below either of the photos
There are some superb pictures of Rocky Peak and the views from the ridge to the North and West
Not directly relevant to what you are looking for but very interesting are some pictures of the other villages in the area that you will find mentioned in the accounts (Memesli, Ormanli, DorLombos). Go to
http://picasaweb.google.com and serach for memesli
Click on one of the photos and then select the Album link at the top right of the page szkoly tureckie_strumica
You will find about 60 photos from a Polish gentleman's visit to the three villages (text in Polish but the village names are obvious)
You may also be interested in the pictures available at
http://salonikabattlefieldtour.com/gallery.htmlThe Memorials and cemeteries link has a picture of the memorial and another which shows the view South from it
There are a few buildings at the end of these pictures that I would be very interested if anyone knows what they show - particularly if one is the building used as the hospital in Dedeli - my grandfather was a doctor with the 10th Irish there
Plus if anyone knows of a photo showing Dedeli pass, particularly the "yellow house" at the top of the pass I would love to see it!
Happy viewing, and thanks to the generous people, particularly gearoidoh, who have put the images on the web!
AndyR
PS if any of the above failed to make sense or to work - please let me know and I will try to help