Error Installing Games

I keep getting this error while trying to install games from ibproarcade :

PHP Code:

Warning: unpack() [function.unpack]: Invalid format type p in /arcade/functions/tar.php on line 750

Warning: fread() [function.fread]: Length parameter must be greater than 0 in /arcade/functions/tar.php on line 794 

I followed everything to the T but I AM using 3.7.0 Beta 3 does anyopne know if there is a way to fix this or will I have to uninstall and wait...

--------------- Added [DATE]1198866045[/DATE] at [TIME]1198866045[/TIME] ---------------

I did try doing a search on the specific error but it would not let me.

[MrZeropage]

this is solved in upcoming v2.6.6+