Help with a New Avatar

I wanted to make myself a new avatar with these frames:

Frame 1
Frame 2
((I saved the files with the oppisite names by accident...))

I have no GIF software, so does anyone that does have the time to piece those two together for me? Just need a simple infinitely-looping GIF with frame 1 showing for five seconds, frame 2 showing for two seconds.

Please?

Is this OK?

Here you go:

Animated GIF

The one I had didn't do variable timing, so I set each for 3 seconds.


Edit: D'oh! Beaten to the punch!

Thankyou-thankyou both!

EDIT: I think I'll continue searching for a GIF program of my own though, just in case.