tax- recommendations for learning providers.

I've been having a hard time with tax. I'm going to sit for the September attempt and I haven't even done with half of the syllabus yet. The OpenTuition lectures haven't been as helpful as I'd hoped. Although I've used OpenTuition for my past four papers I find the tax lectures particularly difficult to understand. With so little time left, I need to finish the syllabus and also revise. I'd really appreciate it if you could recommend any learning providers who could help me pass my tax exam with the time I have remaining.