WordPress conundrum..

lol Not sure how else to put it, but here goes. I am having problems with our blog. It's not domain owned and runs off WordPress itself. I recently had the pleasure of setting up a blog that was domain owned and the amount of plugins you can use to boost traffic and SEO is astounding, where on wp itself you don't have that at all.

My question is an easy one.. kinda. I cannot perform anything other than the basic SEO on the page, and even though I work myself to a standstill back linking to the blog, it still gets no attention. I try get to a new post every week, but with my workload, I'm surprised I know what my name is most days.

So, how would I make it popular, guerrilla tactics? Blog commenting? My posts aren't mediocre lol its just the topics are almost always serious and business oriented because of the work our company does.

TBH if it could only be as easy as the work I did on our main site I might not have this problem,and the blog would do as well, but I don't have access to anything so i only have the links pointing back, and the blog itself to work with.

Any ideas?