Experience with tvLink for Sky or Running Co-axial Wires?

I am nearly at the end of my rope with this so I am looking to see if anyone has any experience (Seeing as how this is a technical lot)

My Issue - Can't get my tvLink to work (I own the official Sky one in the site I pointed to)

What this thing even does: (For non UK members) - It basically is an inline device that allows you to use the remote control. It is powered by a 9v power supply in the main cable box.

More Details:
Basically I have a run of cable from the Main TV in the living room to one in the bedroom. It is around 90 feet (30 meters) with 3 break points - One in the living room that using a plate on the wall, one in the attic which using a simple F coupler, and a third in the bedroom also using a wall plate.

Testing the line, the issue seems to be in the section from after the couple in the attic to the bedroom

The kicker is that the picture is crystal clear, its just the power is not reaching the last connection so the remote control won't work.

Who I have talked to:
3 resellers
Sky Tech Support
The official company

*Unfortunately all seem to answer from a script - a la Paypal so they are of very little help


So my more General Questions are as follows:

1.) When you join two Co-ax cables using an F joiner, does it impede electric current?

2.) If number 1 is a yes, how would you join two cables to allow uninterupted flow of electricity

3.) Do the wall plates which contain a circuit board impede electricity flow?

 

I found this in the Google cache
http://72.14.203.104/search?q=cacheCJ37WI2jnYJ:www.netcentral.co.uk/satcure/tv_link.htm+tvLINK+problems&hl=en&gl=uk&ct=clnk&cd=3

as the original page seems to have dissapeared.
Seems to be along the lines of what you are looking for.
If not I apologise for interfering in your thread.

 

Lol...You don't need to apologise

I hadn't seen that article before and its 99% of stuff I have already been reading except:

What is a "fully screened" wall socket - How would I find it my current ones are?

Although this solution seems to make sense:

although

I may need to have to cut a lengthwise hole in the box

 

that google cached link is now on www.satcure.net

talk to Martin - he knows everything

 

That site added this little tidbit

I am going to try stripping the wall plates of their circuit boards and I guess the only explanation would be a kink in the cable which would mean running a new cable throught the wall (not my favourite choice)