Error: Warning: fopen(arcade/501 Darts.swf)

I'm getting the following error... I've been trying to upload a few different pnflash games to test and out of the three I get the same error at the top of my VB forums...

I'm currently running VB 3.6.8 and VB portal 3.0 rc2 and ibproarcade 2.6.6

Warning: fopen(arcade/501 Darts.swf) [function.fopen]: failed to open stream: No such file or directory in /arcade.php on line 629

I'm also having no luck gettting the images to come up either I've renamed them per the instructions gamename1.gif and gamename2.gif and have tried it a few different ways...
All the default games are working as a side note... I'm just having problems getting the new ones working...

Any thoughts...

[Paradigm]

I am having the same problem with the battletanks game. Its the first one I have installed too.

[MrZeropage]

check if the PNflashgame .swf file is placed in /arcade folder and has the correct filename (same as saved in gamename/gname value)