Symbol Windows in high top

Hi
I have a suspected leak from the window in the high top above the sliding door of our 2003 symbol (slight water marking of the fabric to the side)

I'm sure that I have seen a previous post about this but cannot locate it at present.

Does anyone have experience of the removal and re-sealing of these windows as I will probably tackle the job myself.  Having removed the blind I cannot see how to get to the fixings on the inside.

Thanks

Carver

Not sure if these are relevant, but have a look:

[You must be registered and logged in to see this link.]

PB

Thanks PB
Both of those contain very useful information.

I have spoken to AS who have quoted £225 per high top window.

Thanks

Carver

If it is the same window arrangement as mine, I have resealed one of mine.
Feel free to ask any questions.
Regards

PB

I sealed around the edges of one of the high top windows in my Duetto with CT1 sealant and it stopped a persistent leak without taking out the window. Did it before last winter and all good so far.

Thank you all for your replies.
I just need a dry day or two now to do it.  
Although, If I can get it done by a local firm for £60 or so (thanks Daisy Mae) I may go that route.

I'll make a few more calls this morning.

Thanks again.