ok, ran out of patience, this is getting... annoyng to say the least (not to mention this old cdrom is not going to last much longer, under the circumstances)
as james said, the 770 series caddy is unlike all (if i am not mistaking) other thinkpads caddys. it has the plug on the long side of the hdd, the plug that goes on the motherboard, that is. it is also a special plug, not a standard eide one, so what i am really missing is the adapter, without which i cannot connect my hdd, making a caddy out of something would not be a problem, ofcourse. i also managed to get a hdd, a travelstar even, really nice, with the caddy, but a caddy that has no plug (it's just an "enclosure" to put it this way), and that will fit most newer models (so if anyone needs that, or, even better, can swap with me the caddy i need and this one, i would be glad to )
so, any help would be apreciated, anyone, any idea? maybe someone has this spare part leying around? to put it shortlly HELP
note: no, i will not trade my good old 770 for another/newer model, nor will i throw it out the window, i love the [censored] thing old and beaten up as it is

everybody wants to be a cat...because a cat's the only cat who knows where it's at..