Take a train from the airport. Some trains go directly to Lund, while others stop in Malmö where you have to change trains. All tickets are payable by credit card, but please buy the tickets before stepping on the train (as otherwise they will charge you a hefty fee). There are two train companies, Skånetrafiken and SJ, and we recommend that you buy tickets for Skånetrafiken as they have more departures. To make things more confusing, the trains look almost identical, but if you have a Skånetrafiken-ticket, just avoid any trains with signs that show SJ as the operator.
Just take a train to Lund C.
The centre housing the lab is called "Språk- och Litteraturcentrum" (Centre for Language and Literature) and is located here. Go into the main/middle building. The lab is located below the library. You will see a flight of stairs at the entrance to the library.
Finding a decently priced hotel in Lund can be hard, so we suggest some hotels at various price levels. Always ask if they have a price agreement with Lund University and if you are eligible to use this as a guest of the university.
Grand hotel - a nice and up-scale hotel in the centre of Lund. > €165
Duxiana - modern and comfortable. ~€165
Concordia - modern and up-scale. ~€165
First Hotel Planetstaden - modern, well-equipped. 30 min walk from venue. ~€130
StayAt Hotel - modern and located in the centre of Lund. ~€80-€200
Hotel Djingis Khan - nice hotel at a slightly longer walking distance. ~€75-€175
Hotell Ahlström / Gräddhyllan - fairly cheap and close. Few rooms. ~€75
"The Train" hostel - supercheap and cramped. ~€20
Ibis hotel - Cheap, but requires taking a bus/taxi to and from there as it is not located in central Lund.
Fallback solutions would be to book a hotel in Malmö near the central station and take a train mornings and evenings.