You need to work on your splog obviously. That is a problem. Not with crawlers. They did their part - now you should do yours.
If you used our service, you can remain sure that crawlers visited your splog.
Now, work a bit more on your splog to make it worth indexing.
What should I work on?
Work on your inner site structure, onpage SEO and adding more value/content to it - no matter if it is generated content or not.
There are still thousands of splogs in google index. We see them on a daily basis. However, these are not splogs from 90's but rather new.