Just check what algo you want to mine (X11, Neocrypt) and edit your mining software's .bat file.
Create a worker on this page https://www.ipominer.com/accountdetails (left side)
Select the port on the frontpage (i.e. stratum+tcp://pool.ipominer.com:3335 for X11 Multipool)

Your batch file should look similar to this one

yourminersoftware.exe -k x11mod -o stratum+tcp://pool.ipominer.com:PORT -u USERNAME.WORKERNAME -p x OTHERPARAMETERS