[Plugin: MailChimp Widget] Conflict with "Mailchimp Archives" plugin

Hi there, I’m in the process of configuring some mailchimpery for a client, and have run into a bit of a conflict between this plugin and the “mailchimp archives” plugin that I’m using to display the clients historical newsletters. Here’s a link to that plugin’s page: http://wordpress.org/extend/plugins/mail-chimp-archives/

What seems to be causing the problem is a conflict in the MCAPI versions (the mail-chimp-archives plugin still uses 1.2 of the MCAPI class), where if both plugins are enabled, the list selection control in the widget options (in the case of the mailchimp-widget plugin) and in the prefs panel (in the case of the mail-chimp-archives plugin) fail to load, and the plugins cease working properly.

I noodled around a bit to try to figure out what to do (including copying the v1.3 MCAPI class to the mail-chimp-archives plugin directory in hopes that simply replacing the older class file would be adequate to resolve the conflict (it wasn’t).

Not sure what to do here—in the interrim, I’m using a different list subscription plugin which doesn’t seem to break the mail-chimp-archives plugin (or, rather, doesn’t seem to be broken BY it, whichever is more accurate), but I’d prefer to use the mailchimp-widget subscription plugin. Unfortunately, I’ve only been able to find one ‘archives’ plugin, so replacing mail-chimp-archives with an alternative isn’t currently an option.

Any thoughts about a potential workaround here? Many, many thanks in advance for any help!

-Tim

p.s. I’ll also be starting another thread on the mail-chimp-archives plugin forum in hopes that a solution may arrive in the form of an update to that plugin, since I suspect that the issue has something to do with the out-of-date MCAPI class it uses, but this is all nearly above my head, and I’m hoping that someone swifter and more capable than myself can provide a resolution.

http://wordpress.org/extend/plugins/mailchimp-widget/