Try this. Let me know if there's any issues with it... The output's not EXACTLY as you've described, but if you want it to be, that can easily be fixed.

on *:TEXT:!elo*:#:lkstats $2-
on *:ACTION:!elo*:#:lkstats $2-
;---------------------------------------------------------------------------------------------;
alias lkue return $regsubex($1,/(\W)/g,$iif(\t == $chr(32),+,$+(%,$base($asc(\t),10,16))))
alias lkstats {
  if $sock(lkstats) { .notice $nick Please wait while the previous lookup request finishes }
  elseif $0 < 2 { 
    .notice $nick Please specify a region and a player
    .notice $nick Valid Regions are: EUW, EUNE, NA
  }
  elseif !$istok(EUW EUNE NA,$1,32) {
    .notice $nick Invalid Region: $qt($1)
    .notice $nick Valid Regions are: EUW, EUNE, NA
  }
  else {
    var -g %lk.c #, %lk.r $1, %lk.u $2- 
    sockopen lkstats www.lolking.net 80
    msg # Searching for $qt($2-) in $replace($1,EUW,Europe West,EUNE,Europe Nordic & East,NA,North America) $+ ...
  }
}

on *:SOCKOPEN:lkstats:{
  if $sockerr { 
    .msg %lk.c Unable to connect to site
    return
  }
  sockwrite -nt $sockname GET /search?name= $+ $lkue(%lk.u) HTTP/1.1
  sockwrite -n $sockname Host: www.lolking.net
  sockwrite -n $sockname Connection: close
  sockwrite -n $sockname $crlf
}

on *:SOCKREAD:lkstats:{
  if $sockerr { 
    .msg %lk.c Unable to connect to site
    return
  }
  var %sock | sockread %sock
  if $regex(%sock,m@"search_result_item(?:_disabled)?".+?/[^/]+/([a-z]+)/@i) { sockmark $sockname $iif($regml(1) == %lk.r,1) }
  if $sock($sockname).mark {
    tokenize 15 $regsubex(%sock,/(<[^>]+>|  )/g,$iif(</ isin \t\,))
        msg %lk.c $iif($0 < 11,User Not Ranked,$replace($+($2/,$5/,$4),Level,Level/League/Rating:) -- W/L: $+($6/,$8) -- KDA: $10)
    unset %lk.*
    sockclose $sockname
  }
}

on *:SOCKCLOSE:lkstats:{
  msg %lk.c No Results found.
  unset %lk.*
}

Examples of script in use (including errors):

[15:27 10/25] <~Meta> !elo euw
[15:27 10/25] -blahahaha- Please specify a region and player
[15:27 10/25] -blahahaha- Valid Regions are: EUW, EUNE, NA

[15:27 10/25] <~Meta> !elo euwe Menterothh
[15:27 10/25] -blahahaha- Invalid Region: "euwe"
[15:27 10/25] -blahahaha- Valid Regions are: EUW, EUNE, NA

[15:28 10/25] <~Meta> !elo euw Menterothh
[15:28 10/25] Searching for "Menterothh" in Europe West...
[15:28 10/25] Level/League/Rating: 30/Silver I/1476 :: Wins/Losses: 186/180 :: KDA: 4.1/4.2/10.2

[15:28 10/25] <~Meta> !elo euw test
[15:28 10/25] Searching for "test" in Europe West...
[15:28 10/25] User Not Ranked

[15:28 10/25] <~Meta> !elo euw aasdjk
[15:28 10/25] Searching for "aasdjk" in Europe West...
[15:28 10/25] No Results found.

wow. thank you very much.

(mentbot) Level/League/Rating: 30/Silver I/1476 -- W/L: 186/ 180 -- KDA: 4.1/4.2/10.2

just changed a little of the output to shorten the text. wasn't hard to find.

I do get a space in the output after the "/" here:
W/L: 186/ 180

but it only shows up in the twitch chat. in the IRC-client it's fine with no space though.
no big deal. just a little annoying. but if it can't really be fixed it's okay.

and again. thank you very much.

Turns out there was a tab there; I've updated the code to strip them out, (and also to reflect your output), so try it now.

nice. thanks a lot. much appreciated.

for some reason all I get now is "No Results found."
I went to the site and searched manually to check it still worked properly and it did.
would you know what's causing it maybe?

Hm... It's working fine for me. Nevertheless, I changed /search.php?name= to /search?name= (as it appears in the url in browser), so see if that makes a difference.

is there some way I can check if the connection is being blocked or something?
since it seems to close the socket instantly (where the 'no results found' message) and worked before.

Edit: I might add that the urban dictionary script still works.

it started working again, after I got a new IP when my network card reset for some reason.
not sure how it works though, since I could still search on the site. oh well.

this turned out like this for some reason

(11:28:21) (menteroth) !elo eune Menteroth
(11:28:26) (mentbot) East/1500/Menteroth -- W/L: Gold V/Wins -- KDA: Losses

but NA region worked fine

(11:31:26) (menteroth) !elo na Menteroth
(11:31:29) (mentbot) Level/League/Rating: 30/Silver I/1500 -- W/L: 39/33 -- KDA: 5.2/5.7/9.9

the ; in the & html entity for & was screwing with the tokenization. Try now.

same weird response.

After updating the code? This is what I got:

[22:38 11/01] <~Meta> !elo eune menteroth
[22:39 11/01] Searching for "menteroth" in Europe Nordic & East...
[22:39 11/01] Level/League/Rating: 30/Gold V/1500 -- W/L: 35/30 -- KDA: 5.1/3.8/11.9

thanks. it works now.

I used to use this and it no longer works, just keep getting unable to connect to site. Can someone else test this and tell me if it's still working?

The reason the script isn't working at the moment is that they changed the site.
So we'll just have to wait until Meta, if he feels like it, to update it or perhaps someone else.