Sure doesn't sound that way... We'll see what the mods think... A quick Google... Re. Blackcat cable problems - advice given - don't try a repair shop!
I'm not saying you wrote them, I'm saying that the reason for JTAG kits and Blackcat cables is clearly to hack cable boxes. This forum does not support stealing cable service. Neither do the UK courts. Neither do people who fork out honestly for their service. Bad luck for you guys, I work for a company with a contract with Virginmedia.
Oh please cross back over to where you came from and as you are a sub contractor for VM I thought you would know more than to make assumptions about legalities concerning FTA boxes. BTW a jtag is also used to repair tsop chips. If you would like to clear this up with a mod as you said why not ask creaky or ddp, I am sure they will sort this out for you and lets just say flaming is also not allowed here. So dont flout rules before you read them.