Damn still no answers... 
To get it working you need to set a user/password for your QT wallet. This is done by editing the syscoin.conf file. You can find it by going Start->run and typing
%appdata/syscoin
and then editing it with this info:
Code:
addnode=seed.syscoin.tk
rpcuser=anyusername
rpcpassword=anypasswordyouwant
rpcallowip=192.168.*
rpcport=9368
listen=1
rpcuser=anyusername
rpcpassword=anypasswordyouwant
rpcallowip=192.168.*
rpcport=9368
listen=1
Then restart your wallet. Now you've got the wallet ready for services to connect to it. In the folder that you downloaded the marketplace app in, there is a settings.inc file. Edit that, and replace the placeholders with whatever you put in the above code, and it should launch straight away after saving that file.
This is the answer to your question, but I can understand how only seeing:
This is what i got in my syscoin folder in appdata roaming
aliases
blocks
certificates
chainstate
database
offers
.lock
db
debug
perers.dat
wallet.dat
aliases
blocks
certificates
chainstate
database
offers
.lock
db
debug
perers.dat
wallet.dat
Can be confusing and "too complicated" for average users. This is a beta, please keep that in mind. These types of usability and experience issues can be addressed in further releases.
All you need to do is create a new text file, called "syscoin.conf" in the folder you quoted above. Follow @sphericon's instructions from there and you should be all set!