first let me say hi,,,iv been meaning to join for ages but only just got round to it

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anyway i was wondering if anyone can help me at all,,,,ill try and keep this as short as i can so i dont boor you to death
iv got a project transit connect with focus rs running gear ,,full loom everything from the focus,,,it belonged to my mate and it was fully running but needed the lights wiring up,,,
my mate started playing trying to wire up the lights a blew some fuses and replaced them with other from the fuse box,,,then found he couldnt start the van,,this is the story he has given me anyway,,,i replaced all the fuses
so now iv got the van but it wont start or turn over ,,,,the pats light isnt flashing or doing anything realy,,,i can unlock and lock the doors and get the ignition on but the alarm wont turn off
another mate rigged up the pump and the starter but we found the injector feed was stopped by the ecu
im stumped on what to do next realy or who to ring as the van is stuck on my drive now,,,,,
is there anyway around the alarm/immobliser,,,,,even if it ment buying a aftermarket ecu or a company that could strip it out for me,,,,i have all the paper work for both the van and rs so anyone can see them and know its not stolen running gear
any advice is welcome