Light Switch - 2 way

[RCL]

I have recently purchased two 2 way light switches to replace old ones. Foolishly I was not paying attention to the wiring when I disconnected the old switches. Grateful if anyone can assist me in fitting the new switches which will control the upstairs landing light and down stairs hall light.
The wires downstairs are as follows - 3 x Red, 1 x yellow , 1 x blue, 1 x black and 1 x earth.
Upstairs I have 4 x red, 1 x yellow, 1 x brown, 1 x blue,1 x black and 1 x earth.
I am not sure which wires go into which L1, L2 and Com terminal. I have tried to wire them up but can not seem to get both swtches to operate both lights.
Grateful for any assistance.

[mrknowall]

First i will have to call you a silly sod for not writing the colours and where they went lol
But here is a link that might help but you really should call some one in.

http://www.ultimatehandyman.co.uk/two_way_ligh ting.htm

[BRIGHT SPARK]

You will need an electrician to sort this out as wiring colours on lighting do not always follow the same pattern