Aldiko is recommending that people with 7 inch tablets use an older version of their program. See: https://aldiko.zendesk.com/entries/2...-7-inch-tablet
For 7-inch tablets , Aldiko app will show the phone-version user interface. Phone-version user interface requires hardware menu button to function. However, 7-inch tablets running on Honeycomb or Ice Cream Sandwich don't come with hardware menu button, therefore, you will not be able to access "Menu". We are looking into this and will try to address this in the next update.
If you are using 7-inch tablet running on Honeycomb or Ice Cream Sandwich, we recommend you to download and install the previous version in the attachment here for the time being.
The link to download the older version is within the Aldiko post.