Many contributers are reporting bugs to the tracker. Great! Comitters have tried fixing some of them. But, most fixed-items are keeping open-status. Why? In a fact, fixed item can not become 'closed' without third person's confirming. Yes, these items need your helps! Download the snapshot edition, and check whether the fixed-bug is really fixed. After that, you may report the result as comments to the item in sourceforge.net trackers.
However, if you are not good at technology, no need to push. Because the XOOPS Cube world has many things that you can contribute!
BTW, sourceforge.net's looks is not good for end-users. But, sourceforge.net does its best for free and permanence. So I hope that you challenge to leap language barrier and bad design. That's really a kind of contributions. And, such "challenges" are wholesome!
I'm learning English for XOOPS Cube. By that, my life became better! Passions enhance XOOPS Cube and you!