from their website - "learndirect courses aren't actually qualifications as such, but many have been designed as part of learning programmes that cover the syllabuses of popular qualifications"
i.e. if you're looking at a PC course, it won't do anything in terms of enhancing your CV, or making an employer look at you more favourably.
I took Sun's Java programmer/developer/web developer exams a few years back. There are plenty of places offering intensive Java courses to prepare you for these - however, I found it just as easy (and several grand cheaper cheaper), to buy half a dozen books, and work my way through some of the numerous, and free, online examples & questions.