Recently active problems in twitterfeed tagged with feed

Twitterfeed says my feed is missing date/time stamps but the W3 feed validator validates the feed!

The feed I am trying to use with TwitterFeed is

http://feeds.feedburner.com/matthewlang

I've seen a few instances here of feeds not being validated with TwitterFeed and then a few minutes later they are.

Is twitterfeed website down? I cannot get a webpage to load from www.twitterfeed.com

My rss feed doesn't valid into twitterfeed. It says that I don't have valid time stamp entries.

urls created with option tweetburner won't show up in my stats within tweetburner. isn't it using the username provided for twitter?

I have added my blog's feed but the posts are not appearing in twitter. The feed is accepted and parced, it's active, and my authentication checks out. From all appearances, it should be working. TwitterFeed says that the feed is active and working. Any ideas?

What alternatives (if any) are there to PubDate?

I'm trying my best to import a feed from feed43 (HTML scraping), then put on twitter. The feed doesn't include PubDate, but I'm trying to find the best alternative.

I've spent the past 3 hours or so trying to fidget around with Yahoo Pipes to add a pubDate in, but it seems to absolutely hate me.

Here's the feed from feed43: http://feed43.com/7635766114514357.xml

Any ideas?

I see that twitterfeed is not posting my feed in Twitter, my feed is: http://feeds.feedburner.com/enchilame... (parsed ok) and my Twitter account is @enchilame

My feed status says "not checked yet".

Can someone help me?